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Rue Paul Doumer in Paris 16th.
Rue Paul Doumer in Paris 16th.

TEC4624331: Rue Paul Doumer in Paris 16th. / Bridgeman Images

La rue de la Tour in Paris 16th.
La rue de la Tour in Paris 16th.

TEC4624366: La rue de la Tour in Paris 16th. / Bridgeman Images

La rue de Passy in Paris.
La rue de Passy in Paris.

TEC4624371: La rue de Passy in Paris. / Bridgeman Images

Pluto and Charon satellite seen by the New Horizons probe on July 14, 2015 at 250,000 km from the dwarf planet
Pluto and Charon satellite seen by the New Horizons probe on July 14, 2015 at 250,000 km from the dwarf planet

PIX4624378: Pluto and Charon satellite seen by the New Horizons probe on July 14, 2015 at 250,000 km from the dwarf planet / Bridgeman Images

Pluto and satellites seen from another satellite - View of Pluto (center), its satellite Charon (right) from one of its new satellites. The second new satellite is the bright spot on the left. These satellites, S/2005 P 1 (renamed Hydra) and S/2005 P 2 (renamed Nix), are about 64,000 and 48,000 km from Pluto. Since August 2006, Pluto is now called 134340 Pluto and is no longer considered a planet but designed as a dwarf planet.
Pluto and satellites seen from another satellite - View of Pluto (center), its satellite Charon (right) from one of its new satellites. The second new satellite is the bright spot on the left. These satellites, S/2005 P 1 (renamed Hydra) and S/2005 P 2 (renamed Nix), are about 64,000 and 48,000 km from Pluto. Since August 2006, Pluto is now called 134340 Pluto and is no longer considered a planet but designed as a dwarf planet.

PIX4624401: Pluto and satellites seen from another satellite - View of Pluto (center), its satellite Charon (right) from one of its new satellites. The second new satellite is the bright spot on the left. These satellites, S/2005 P 1 (renamed Hydra) and S/2005 P 2 (renamed Nix), are about 64,000 and 48,000 km from Pluto. Since August 2006, Pluto is now called 134340 Pluto and is no longer considered a planet but designed as a dwarf planet. / Bridgeman Images

Planetary nebula Dumbbell (M27) in Little Fox - Dumbell planetary nebula (M27) in Vulpecula - The planetary nebula Dumbbell (M27) is located about 1400 years - light from Earth in the constellation Little Fox. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained with a 50 cm telescope, through various filters including an H-alpha filter. The Dumbbell Nebula (M27, NGC 6853), is a planetary nebula located about 1200 light years from the earth in the constellation of Vulpecula. The nebula was formed when an evolved, red giant star ejected its outer envelope near the end of its lifetime. The expanding cloud of gas becomes visible once the hot core of the star, visible near the center, is exposed and the high - energy, ultraviolet light from the core ionizes the cloud
Planetary nebula Dumbbell (M27) in Little Fox - Dumbell planetary nebula (M27) in Vulpecula - The planetary nebula Dumbbell (M27) is located about 1400 years - light from Earth in the constellation Little Fox. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained with a 50 cm telescope, through various filters including an H-alpha filter. The Dumbbell Nebula (M27, NGC 6853), is a planetary nebula located about 1200 light years from the earth in the constellation of Vulpecula. The nebula was formed when an evolved, red giant star ejected its outer envelope near the end of its lifetime. The expanding cloud of gas becomes visible once the hot core of the star, visible near the center, is exposed and the high - energy, ultraviolet light from the core ionizes the cloud

PIX4623523: Planetary nebula Dumbbell (M27) in Little Fox - Dumbell planetary nebula (M27) in Vulpecula - The planetary nebula Dumbbell (M27) is located about 1400 years - light from Earth in the constellation Little Fox. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained with a 50 cm telescope, through various filters including an H-alpha filter. The Dumbbell Nebula (M27, NGC 6853), is a planetary nebula located about 1200 light years from the earth in the constellation of Vulpecula. The nebula was formed when an evolved, red giant star ejected its outer envelope near the end of its lifetime. The expanding cloud of gas becomes visible once the hot core of the star, visible near the center, is exposed and the high - energy, ultraviolet light from the core ionizes the cloud / Bridgeman Images

The Hubble Space Telescope's Near Infrared Camera and Multi - Object Spectrometer (NICMOS) has captured a glimpse of a brief stage in the burnout of NGC 7027, a medium - mass star like our sun. THE INFRARED VIEW - - The composite color image of NGC 7027 (on the left) is among the first data of a planetary nebula taken with NICMOS. This picture is actually composed of three separate images taken at different wavelengths. The red color represents cool molecular hydrogen gas, the most abundant gas in the universe. The image reveals the central star, which is difficult to see in images taken with visible light. Surrounding it is an elongated region of gas and dust cast off by the star. This gas (appearing as white) has a temperature of several tens of thousands of degrees Fahrenheit. The object has two “” cones”” of cool molecular hydrogen gas (the red material) glowing in the infrared. The gas has been energized by ultraviolet light from the star - a process known as fluorescence. Most of the material shed by the star remains outside of the bright regions. It is invisible in this image because the layers of material in and near the bright regions are still shielding it from the central star's intense radiation. NGC 7027 is one of the smallest objects of its kind to be imaged by the Hubble telescope. However, the region seen here is approximately 14,000 times the average distance between Earth and the sun. THE INFRARED AND VISIBLE LIGHT VIEW - - This visible and infrared light picture of NGC 7027 (on the right) provides a more complete view of how this planetary nebula is being shaped, revealing steps in its evolution. This image is composed of three exposures, one from the Wide Field and Planetary Camera 2 (WFPC2) and two from NICMOS. The blue represents the WFPC2 image; the green and red, NICMOS exposures. The white is emission from the hot gas surrounding the central star; the red and pink represent emission from cool
The Hubble Space Telescope's Near Infrared Camera and Multi - Object Spectrometer (NICMOS) has captured a glimpse of a brief stage in the burnout of NGC 7027, a medium - mass star like our sun. THE INFRARED VIEW - - The composite color image of NGC 7027 (on the left) is among the first data of a planetary nebula taken with NICMOS. This picture is actually composed of three separate images taken at different wavelengths. The red color represents cool molecular hydrogen gas, the most abundant gas in the universe. The image reveals the central star, which is difficult to see in images taken with visible light. Surrounding it is an elongated region of gas and dust cast off by the star. This gas (appearing as white) has a temperature of several tens of thousands of degrees Fahrenheit. The object has two “” cones”” of cool molecular hydrogen gas (the red material) glowing in the infrared. The gas has been energized by ultraviolet light from the star - a process known as fluorescence. Most of the material shed by the star remains outside of the bright regions. It is invisible in this image because the layers of material in and near the bright regions are still shielding it from the central star's intense radiation. NGC 7027 is one of the smallest objects of its kind to be imaged by the Hubble telescope. However, the region seen here is approximately 14,000 times the average distance between Earth and the sun. THE INFRARED AND VISIBLE LIGHT VIEW - - This visible and infrared light picture of NGC 7027 (on the right) provides a more complete view of how this planetary nebula is being shaped, revealing steps in its evolution. This image is composed of three exposures, one from the Wide Field and Planetary Camera 2 (WFPC2) and two from NICMOS. The blue represents the WFPC2 image; the green and red, NICMOS exposures. The white is emission from the hot gas surrounding the central star; the red and pink represent emission from cool

PIX4623549: The Hubble Space Telescope's Near Infrared Camera and Multi - Object Spectrometer (NICMOS) has captured a glimpse of a brief stage in the burnout of NGC 7027, a medium - mass star like our sun. THE INFRARED VIEW - - The composite color image of NGC 7027 (on the left) is among the first data of a planetary nebula taken with NICMOS. This picture is actually composed of three separate images taken at different wavelengths. The red color represents cool molecular hydrogen gas, the most abundant gas in the universe. The image reveals the central star, which is difficult to see in images taken with visible light. Surrounding it is an elongated region of gas and dust cast off by the star. This gas (appearing as white) has a temperature of several tens of thousands of degrees Fahrenheit. The object has two “” cones”” of cool molecular hydrogen gas (the red material) glowing in the infrared. The gas has been energized by ultraviolet light from the star - a process known as fluorescence. Most of the material shed by the star remains outside of the bright regions. It is invisible in this image because the layers of material in and near the bright regions are still shielding it from the central star's intense radiation. NGC 7027 is one of the smallest objects of its kind to be imaged by the Hubble telescope. However, the region seen here is approximately 14,000 times the average distance between Earth and the sun. THE INFRARED AND VISIBLE LIGHT VIEW - - This visible and infrared light picture of NGC 7027 (on the right) provides a more complete view of how this planetary nebula is being shaped, revealing steps in its evolution. This image is composed of three exposures, one from the Wide Field and Planetary Camera 2 (WFPC2) and two from NICMOS. The blue represents the WFPC2 image; the green and red, NICMOS exposures. The white is emission from the hot gas surrounding the central star; the red and pink represent emission from cool / Bridgeman Images

Planetary nebula Helix (NGC 7293) in Aquarius - Planetary nebula Helix (NGC 7293) - This nebula is located 690 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope This faint object is the nearest planetary nebula to the Sun and on deep photographs has a diameter of about half a degree - - the same apparent size as the Sun in the sky. The AAT colour picture shows the brighter parts of the nebula, revealing various ionization levels within the shell of matter ejected from the central star. The greenish middle portion is evidence of excited oxygen atoms, while the outer red is predominantly light from nitrogen and hydrogen. The smallest of the radial blobs inside the red shell are about 150 astronomical units across (150 times the Earth - Sun distance) and they give this beautiful object its alternative name, the Sunflower Nebula. The Helix is about 400 light years away, or about 100 times more distant than the nearest stars
Planetary nebula Helix (NGC 7293) in Aquarius - Planetary nebula Helix (NGC 7293) - This nebula is located 690 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope This faint object is the nearest planetary nebula to the Sun and on deep photographs has a diameter of about half a degree - - the same apparent size as the Sun in the sky. The AAT colour picture shows the brighter parts of the nebula, revealing various ionization levels within the shell of matter ejected from the central star. The greenish middle portion is evidence of excited oxygen atoms, while the outer red is predominantly light from nitrogen and hydrogen. The smallest of the radial blobs inside the red shell are about 150 astronomical units across (150 times the Earth - Sun distance) and they give this beautiful object its alternative name, the Sunflower Nebula. The Helix is about 400 light years away, or about 100 times more distant than the nearest stars

PIX4623637: Planetary nebula Helix (NGC 7293) in Aquarius - Planetary nebula Helix (NGC 7293) - This nebula is located 690 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope This faint object is the nearest planetary nebula to the Sun and on deep photographs has a diameter of about half a degree - - the same apparent size as the Sun in the sky. The AAT colour picture shows the brighter parts of the nebula, revealing various ionization levels within the shell of matter ejected from the central star. The greenish middle portion is evidence of excited oxygen atoms, while the outer red is predominantly light from nitrogen and hydrogen. The smallest of the radial blobs inside the red shell are about 150 astronomical units across (150 times the Earth - Sun distance) and they give this beautiful object its alternative name, the Sunflower Nebula. The Helix is about 400 light years away, or about 100 times more distant than the nearest stars / Bridgeman Images

Planetary nebula PK 36 - 1.1 (SH2 - 71) in Eagle
Planetary nebula PK 36 - 1.1 (SH2 - 71) in Eagle

PIX4623704: Planetary nebula PK 36 - 1.1 (SH2 - 71) in Eagle / Bridgeman Images

Planetary Nebula of the Red Rectangle in the Unicorn - This is a ground - based view of the sky around the Red Rectangle. The image spans a square of one degree and was constructed from three images from the Digitized Sky Survey 2 taken in Blue, Infrared and Red (shown as blue, green and red respectively)
Planetary Nebula of the Red Rectangle in the Unicorn - This is a ground - based view of the sky around the Red Rectangle. The image spans a square of one degree and was constructed from three images from the Digitized Sky Survey 2 taken in Blue, Infrared and Red (shown as blue, green and red respectively)

PIX4623745: Planetary Nebula of the Red Rectangle in the Unicorn - This is a ground - based view of the sky around the Red Rectangle. The image spans a square of one degree and was constructed from three images from the Digitized Sky Survey 2 taken in Blue, Infrared and Red (shown as blue, green and red respectively) / Bridgeman Images

Nebulae NGC 2024 and Horse's Head - Flame nebula and the Horsehead Nebula - This image shows the nebula NGC 2024 (left), the small nebula NGC 2023 (right middle) and the nebula of the horse's head (top right). The bright star on the top left is the star Alnitak. Visible infrared composite image. This image shows the spectacular star - forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. The view also includes the glow of the reflection nebula NGC 2023, middle right, and the ghostly outline of the Horsehead Nebula (Barnard 33) towards the upper right. The bright bluish star top left is one of the three bright stars forming the Belt of Orion, Alnitak. The image was created from VISTA in the near - infrared part of the spectrum and optical datas
Nebulae NGC 2024 and Horse's Head - Flame nebula and the Horsehead Nebula - This image shows the nebula NGC 2024 (left), the small nebula NGC 2023 (right middle) and the nebula of the horse's head (top right). The bright star on the top left is the star Alnitak. Visible infrared composite image. This image shows the spectacular star - forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. The view also includes the glow of the reflection nebula NGC 2023, middle right, and the ghostly outline of the Horsehead Nebula (Barnard 33) towards the upper right. The bright bluish star top left is one of the three bright stars forming the Belt of Orion, Alnitak. The image was created from VISTA in the near - infrared part of the spectrum and optical datas

PIX4622107: Nebulae NGC 2024 and Horse's Head - Flame nebula and the Horsehead Nebula - This image shows the nebula NGC 2024 (left), the small nebula NGC 2023 (right middle) and the nebula of the horse's head (top right). The bright star on the top left is the star Alnitak. Visible infrared composite image. This image shows the spectacular star - forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. The view also includes the glow of the reflection nebula NGC 2023, middle right, and the ghostly outline of the Horsehead Nebula (Barnard 33) towards the upper right. The bright bluish star top left is one of the three bright stars forming the Belt of Orion, Alnitak. The image was created from VISTA in the near - infrared part of the spectrum and optical datas / Bridgeman Images

Nebula IC 1318 in the Swan - IC 1318 the Butterfly nebula in Cygnus - IC 1318 is a very extended emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. This is a large area of emission nebulosity around Sadr, Gamma Cygnii, the brightest star in this photo and the heart of Cygnus. Stretching more than 2 x 3 degrees here, the nebulosity actually extends far out of the photo. Most of the nebulosity is fairly faint, but brighter patches can be seen in a modest instrument. The two sections of nebulosity to the left of Gamma are called the Butterfly Nebula and have the catalog designation of IC 1318. LDN 889 is the large area of dark nebulosity that separates the two halves of the Butterfly Nebula, and B 343 is the small but very dense dark nebula on the right side of the image
Nebula IC 1318 in the Swan - IC 1318 the Butterfly nebula in Cygnus - IC 1318 is a very extended emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. This is a large area of emission nebulosity around Sadr, Gamma Cygnii, the brightest star in this photo and the heart of Cygnus. Stretching more than 2 x 3 degrees here, the nebulosity actually extends far out of the photo. Most of the nebulosity is fairly faint, but brighter patches can be seen in a modest instrument. The two sections of nebulosity to the left of Gamma are called the Butterfly Nebula and have the catalog designation of IC 1318. LDN 889 is the large area of dark nebulosity that separates the two halves of the Butterfly Nebula, and B 343 is the small but very dense dark nebula on the right side of the image

PIX4622154: Nebula IC 1318 in the Swan - IC 1318 the Butterfly nebula in Cygnus - IC 1318 is a very extended emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. This is a large area of emission nebulosity around Sadr, Gamma Cygnii, the brightest star in this photo and the heart of Cygnus. Stretching more than 2 x 3 degrees here, the nebulosity actually extends far out of the photo. Most of the nebulosity is fairly faint, but brighter patches can be seen in a modest instrument. The two sections of nebulosity to the left of Gamma are called the Butterfly Nebula and have the catalog designation of IC 1318. LDN 889 is the large area of dark nebulosity that separates the two halves of the Butterfly Nebula, and B 343 is the small but very dense dark nebula on the right side of the image / Bridgeman Images

Nebula IC 1318 in the Swan - IC 1318 Butterfly nebula in Cygnus - IC 1318 is a very large emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. Image obtained with H - alpha filter, 5 hours of cumulative poses. This is a large area of emission nebulosity around Sadr, Gamma Cygnii, the brightest star in this photo and the heart of Cygnus. Most of the nebulosity is fairly faint, but brighter patches can be seen in a modest instrument. The two sections of nebulosity to the left of Gamma are called the Butterfly Nebula and have the catalog designation of IC 1318. LDN 889 is the large area of dark nebulosity that separates the two halves of the Butterfly Nebula, and B 343 is the small but very dense dark nebula on the right side of the image. This is a hydrogen alpha color composite image
Nebula IC 1318 in the Swan - IC 1318 Butterfly nebula in Cygnus - IC 1318 is a very large emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. Image obtained with H - alpha filter, 5 hours of cumulative poses. This is a large area of emission nebulosity around Sadr, Gamma Cygnii, the brightest star in this photo and the heart of Cygnus. Most of the nebulosity is fairly faint, but brighter patches can be seen in a modest instrument. The two sections of nebulosity to the left of Gamma are called the Butterfly Nebula and have the catalog designation of IC 1318. LDN 889 is the large area of dark nebulosity that separates the two halves of the Butterfly Nebula, and B 343 is the small but very dense dark nebula on the right side of the image. This is a hydrogen alpha color composite image

PIX4622161: Nebula IC 1318 in the Swan - IC 1318 Butterfly nebula in Cygnus - IC 1318 is a very large emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. Image obtained with H - alpha filter, 5 hours of cumulative poses. This is a large area of emission nebulosity around Sadr, Gamma Cygnii, the brightest star in this photo and the heart of Cygnus. Most of the nebulosity is fairly faint, but brighter patches can be seen in a modest instrument. The two sections of nebulosity to the left of Gamma are called the Butterfly Nebula and have the catalog designation of IC 1318. LDN 889 is the large area of dark nebulosity that separates the two halves of the Butterfly Nebula, and B 343 is the small but very dense dark nebula on the right side of the image. This is a hydrogen alpha color composite image / Bridgeman Images

Nebula IC 1318 in the Swan - Gamma Cygnus, IC 1318, NGC 6888 - IC 1318 is a very extended emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. Lower right is the nebula NGC 6888 which surrounds a star Wolf - Rayet. This large area of emission nebulosity surrounds Sadr, Gamma Cygni, the brightest star in this photo and the heart of the constellation of Cygnus the Swan. Numerous star clusters can also be found embedded in the nebulosity. The two sections of nebulosity to the left of Sadr are called the Butterfly Nebula, and have the catalog designation of IC 1318. The large area of dark nebulosity that separates the two halves of the Butterfly is LDN 889, and B343 is the small but very dense dark nebula at the center right of the image. The small open cluster NGC 6910 is just above Sadr. The Crescent Nebula, NGC 6888, is at the lower right. The small patches of blue reflection nebulosity at top left are part of the NGC 6914/van den Berg 131/van den Berg 132 complex
Nebula IC 1318 in the Swan - Gamma Cygnus, IC 1318, NGC 6888 - IC 1318 is a very extended emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. Lower right is the nebula NGC 6888 which surrounds a star Wolf - Rayet. This large area of emission nebulosity surrounds Sadr, Gamma Cygni, the brightest star in this photo and the heart of the constellation of Cygnus the Swan. Numerous star clusters can also be found embedded in the nebulosity. The two sections of nebulosity to the left of Sadr are called the Butterfly Nebula, and have the catalog designation of IC 1318. The large area of dark nebulosity that separates the two halves of the Butterfly is LDN 889, and B343 is the small but very dense dark nebula at the center right of the image. The small open cluster NGC 6910 is just above Sadr. The Crescent Nebula, NGC 6888, is at the lower right. The small patches of blue reflection nebulosity at top left are part of the NGC 6914/van den Berg 131/van den Berg 132 complex

PIX4622203: Nebula IC 1318 in the Swan - Gamma Cygnus, IC 1318, NGC 6888 - IC 1318 is a very extended emission nebula that surrounds the star Gamma Cygni (Sadr), visible towards the middle of the image. Lower right is the nebula NGC 6888 which surrounds a star Wolf - Rayet. This large area of emission nebulosity surrounds Sadr, Gamma Cygni, the brightest star in this photo and the heart of the constellation of Cygnus the Swan. Numerous star clusters can also be found embedded in the nebulosity. The two sections of nebulosity to the left of Sadr are called the Butterfly Nebula, and have the catalog designation of IC 1318. The large area of dark nebulosity that separates the two halves of the Butterfly is LDN 889, and B343 is the small but very dense dark nebula at the center right of the image. The small open cluster NGC 6910 is just above Sadr. The Crescent Nebula, NGC 6888, is at the lower right. The small patches of blue reflection nebulosity at top left are part of the NGC 6914/van den Berg 131/van den Berg 132 complex / Bridgeman Images

Region around the nebula IC 1396 - Region around the nebula IC 1396 - Nebula IC 1396 is a vast region of star formation between 2000 and 3000 years - light of the Earth. On the right, the nebula North America (NGC 7000) in the constellation Swan. In the center, the dark nebula Le Gentil 3
Region around the nebula IC 1396 - Region around the nebula IC 1396 - Nebula IC 1396 is a vast region of star formation between 2000 and 3000 years - light of the Earth. On the right, the nebula North America (NGC 7000) in the constellation Swan. In the center, the dark nebula Le Gentil 3

PIX4622270: Region around the nebula IC 1396 - Region around the nebula IC 1396 - Nebula IC 1396 is a vast region of star formation between 2000 and 3000 years - light of the Earth. On the right, the nebula North America (NGC 7000) in the constellation Swan. In the center, the dark nebula Le Gentil 3 / Bridgeman Images

L'Ecole polytechnique, 1 rue Descartes, Paris 5e. From its creation in 1794, the school, which took the name of Polytechnique in September 1795, was thus clearly defined. She must give her students a solid scientific training, based on mathematics, physics and chemistry, and train them to enter the special schools of the public services of the State, such as the school of application of artillery and genie, the school of mines or that of Ponts et Chaussees. To take over the students judges who were too indisciplinary outside, Napoleon decided to take over them by imposing a military regime on them in 1804. They set them up on the Sainte Genevieve Mountain, in the premises of the College of Navarre and the College of Boncourt. Place they will not leave until 1976.
L'Ecole polytechnique, 1 rue Descartes, Paris 5e. From its creation in 1794, the school, which took the name of Polytechnique in September 1795, was thus clearly defined. She must give her students a solid scientific training, based on mathematics, physics and chemistry, and train them to enter the special schools of the public services of the State, such as the school of application of artillery and genie, the school of mines or that of Ponts et Chaussees. To take over the students judges who were too indisciplinary outside, Napoleon decided to take over them by imposing a military regime on them in 1804. They set them up on the Sainte Genevieve Mountain, in the premises of the College of Navarre and the College of Boncourt. Place they will not leave until 1976.

TEC4622298: L'Ecole polytechnique, 1 rue Descartes, Paris 5e. From its creation in 1794, the school, which took the name of Polytechnique in September 1795, was thus clearly defined. She must give her students a solid scientific training, based on mathematics, physics and chemistry, and train them to enter the special schools of the public services of the State, such as the school of application of artillery and genie, the school of mines or that of Ponts et Chaussees. To take over the students judges who were too indisciplinary outside, Napoleon decided to take over them by imposing a military regime on them in 1804. They set them up on the Sainte Genevieve Mountain, in the premises of the College of Navarre and the College of Boncourt. Place they will not leave until 1976. / Bridgeman Images

Elephant tube nebula (VDB 142) in Cephee - The Elephant Trunk Nebula (VDB 142) in Cepheus - IC1396, VDB 142. Nebula located about 2700 years - light from Earth. Image obtained with a telescope 40 cm in diameter, through 3 different filters that highlight oxygen, hydrogen, and sulfur. The Elephant Trunk Nebula (IC 1396A) in Cepheus is part of the larger IC 1396 complex which spans a large area of the sky measuring 170 by 140 arc - minutes and is one of the brightest emission nebulae with a magnitude of 3.5. The western portion of IC 1396 contains the Elephant Trunk Nebula (IC 1396A) which is characterized with H - II emissions, dark lanes and globules as well as a small reflection nebula. The IC 1396 complex is technically a star cluster (aka Cr 439, Trumpler 37) owing to the presence of a developing open but loose cluster at the heart of this rich nebulosity. This open star cluster is comprised of 50 - 100 member stars which vary in brightness spanning an area of approximately 50 'in diameter and which are not very well detached from the background sky. This stellar nursery lies at a distance of 2,720 light - years away. Image taken with a 16 inch telescope in combining the light from 3 different filters tracing emission from oxygen, hydrogen, and sulphur
Elephant tube nebula (VDB 142) in Cephee - The Elephant Trunk Nebula (VDB 142) in Cepheus - IC1396, VDB 142. Nebula located about 2700 years - light from Earth. Image obtained with a telescope 40 cm in diameter, through 3 different filters that highlight oxygen, hydrogen, and sulfur. The Elephant Trunk Nebula (IC 1396A) in Cepheus is part of the larger IC 1396 complex which spans a large area of the sky measuring 170 by 140 arc - minutes and is one of the brightest emission nebulae with a magnitude of 3.5. The western portion of IC 1396 contains the Elephant Trunk Nebula (IC 1396A) which is characterized with H - II emissions, dark lanes and globules as well as a small reflection nebula. The IC 1396 complex is technically a star cluster (aka Cr 439, Trumpler 37) owing to the presence of a developing open but loose cluster at the heart of this rich nebulosity. This open star cluster is comprised of 50 - 100 member stars which vary in brightness spanning an area of approximately 50 'in diameter and which are not very well detached from the background sky. This stellar nursery lies at a distance of 2,720 light - years away. Image taken with a 16 inch telescope in combining the light from 3 different filters tracing emission from oxygen, hydrogen, and sulphur

PIX4622303: Elephant tube nebula (VDB 142) in Cephee - The Elephant Trunk Nebula (VDB 142) in Cepheus - IC1396, VDB 142. Nebula located about 2700 years - light from Earth. Image obtained with a telescope 40 cm in diameter, through 3 different filters that highlight oxygen, hydrogen, and sulfur. The Elephant Trunk Nebula (IC 1396A) in Cepheus is part of the larger IC 1396 complex which spans a large area of the sky measuring 170 by 140 arc - minutes and is one of the brightest emission nebulae with a magnitude of 3.5. The western portion of IC 1396 contains the Elephant Trunk Nebula (IC 1396A) which is characterized with H - II emissions, dark lanes and globules as well as a small reflection nebula. The IC 1396 complex is technically a star cluster (aka Cr 439, Trumpler 37) owing to the presence of a developing open but loose cluster at the heart of this rich nebulosity. This open star cluster is comprised of 50 - 100 member stars which vary in brightness spanning an area of approximately 50 'in diameter and which are not very well detached from the background sky. This stellar nursery lies at a distance of 2,720 light - years away. Image taken with a 16 inch telescope in combining the light from 3 different filters tracing emission from oxygen, hydrogen, and sulphur / Bridgeman Images

The Church of Saint Etienne du Mont in Paris 75005. Victor Balard (1805-1874) restored the facade of the Church of Saint Stephen of Mount between 1861 and 1868.
The Church of Saint Etienne du Mont in Paris 75005. Victor Balard (1805-1874) restored the facade of the Church of Saint Stephen of Mount between 1861 and 1868.

TEC4622334: The Church of Saint Etienne du Mont in Paris 75005. Victor Balard (1805-1874) restored the facade of the Church of Saint Stephen of Mount between 1861 and 1868. / Bridgeman Images

Nebulae IC1848 & IC1805 in Cassiopee - (Heart and Soul nebulae) 2004 Four Frame Mosaic STL11000, FSQ106, F5, Total Exposure 12 hour
Nebulae IC1848 & IC1805 in Cassiopee - (Heart and Soul nebulae) 2004 Four Frame Mosaic STL11000, FSQ106, F5, Total Exposure 12 hour

PIX4622339: Nebulae IC1848 & IC1805 in Cassiopee - (Heart and Soul nebulae) 2004 Four Frame Mosaic STL11000, FSQ106, F5, Total Exposure 12 hour / Bridgeman Images

Nebula IC 1805 in Cassiopee - Nebula IC 1805 in Cassiope
Nebula IC 1805 in Cassiopee - Nebula IC 1805 in Cassiope

PIX4622365: Nebula IC 1805 in Cassiopee - Nebula IC 1805 in Cassiope / Bridgeman Images

The bibliotheque Sainte Genevieve, construction 1845-1851, architect Henri Labrouste (1801-1875) in Paris.
The bibliotheque Sainte Genevieve, construction 1845-1851, architect Henri Labrouste (1801-1875) in Paris.

TEC4622698: The bibliotheque Sainte Genevieve, construction 1845-1851, architect Henri Labrouste (1801-1875) in Paris. / Bridgeman Images

Place du Pantheon in Paris.
Place du Pantheon in Paris.

TEC4622703: Place du Pantheon in Paris. / Bridgeman Images

Cocoon Nebula (IC 5146) in the Swan - Cocoon Nebula - IC 5146 is an emission nebula located about 4,000 light years away towards the constellation of Cygnus
Cocoon Nebula (IC 5146) in the Swan - Cocoon Nebula - IC 5146 is an emission nebula located about 4,000 light years away towards the constellation of Cygnus

PIX4622710: Cocoon Nebula (IC 5146) in the Swan - Cocoon Nebula - IC 5146 is an emission nebula located about 4,000 light years away towards the constellation of Cygnus / Bridgeman Images

Cocoon Nebula (IC 5146) in the Swan - Cocoon Nebula - IC 5146 - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. It is located at the end of a dark nebula, B168. The Cocoon Nebula, is involved with open star cluster IC 5146, and lies at the end of an interesting dark nebulae, B168. IC 5146 is an emission nebula located about 4,000 light years away towards the constellation of Cygnus. This image was made with a Canon 300 mm lens and 20Da DSLR camera and 12 x 5 minute exposures at ISO 1600
Cocoon Nebula (IC 5146) in the Swan - Cocoon Nebula - IC 5146 - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. It is located at the end of a dark nebula, B168. The Cocoon Nebula, is involved with open star cluster IC 5146, and lies at the end of an interesting dark nebulae, B168. IC 5146 is an emission nebula located about 4,000 light years away towards the constellation of Cygnus. This image was made with a Canon 300 mm lens and 20Da DSLR camera and 12 x 5 minute exposures at ISO 1600

PIX4622738: Cocoon Nebula (IC 5146) in the Swan - Cocoon Nebula - IC 5146 - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. It is located at the end of a dark nebula, B168. The Cocoon Nebula, is involved with open star cluster IC 5146, and lies at the end of an interesting dark nebulae, B168. IC 5146 is an emission nebula located about 4,000 light years away towards the constellation of Cygnus. This image was made with a Canon 300 mm lens and 20Da DSLR camera and 12 x 5 minute exposures at ISO 1600 / Bridgeman Images

Cocon Nebula (IC 5146) in Swan - Cocon Nebula (IC 5146) in Swan - Cocon Nebula, IC 5146, is an emission nebula located about 4000 years - light from Earth in the constellation Swan
Cocon Nebula (IC 5146) in Swan - Cocon Nebula (IC 5146) in Swan - Cocon Nebula, IC 5146, is an emission nebula located about 4000 years - light from Earth in the constellation Swan

PIX4622742: Cocon Nebula (IC 5146) in Swan - Cocon Nebula (IC 5146) in Swan - Cocon Nebula, IC 5146, is an emission nebula located about 4000 years - light from Earth in the constellation Swan / Bridgeman Images

Planetary nebula NGC 40 in Cephe
Planetary nebula NGC 40 in Cephe

PIX4622761: Planetary nebula NGC 40 in Cephe / Bridgeman Images

Neptune - Voyager 2 - Image of the Great Dark Spot on Neptune obtained by the Voyager 2 probe on August 23, 1989. The Great Dark Spot is the size of the Earth and winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. Date: 08/23/89 Range: 2.8 million km. (1.7 million miles) Smallest Resolvable Feature: 50 km or 31 miles This Voyager 2 image shows the last face on view of the Great Dark Spot that Voyager 2 will take with the narrow angle camera. It was made 45 hours before the closest approach to Neptune. the image shows feathery white clouds that overlie the boundary of the dark and light blue regions. the pinwheel (spiral) structure of both the dark boundary and the white cirrus suggest a storm system rotating counterclockwise. Periodic, small - scale patterns in the white clouds, possibly waves, are short - lived and do not persist from one Neptunian rotation to the next. This color composite was made from the clear and green filter images
Neptune - Voyager 2 - Image of the Great Dark Spot on Neptune obtained by the Voyager 2 probe on August 23, 1989. The Great Dark Spot is the size of the Earth and winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. Date: 08/23/89 Range: 2.8 million km. (1.7 million miles) Smallest Resolvable Feature: 50 km or 31 miles This Voyager 2 image shows the last face on view of the Great Dark Spot that Voyager 2 will take with the narrow angle camera. It was made 45 hours before the closest approach to Neptune. the image shows feathery white clouds that overlie the boundary of the dark and light blue regions. the pinwheel (spiral) structure of both the dark boundary and the white cirrus suggest a storm system rotating counterclockwise. Periodic, small - scale patterns in the white clouds, possibly waves, are short - lived and do not persist from one Neptunian rotation to the next. This color composite was made from the clear and green filter images

PIX4622808: Neptune - Voyager 2 - Image of the Great Dark Spot on Neptune obtained by the Voyager 2 probe on August 23, 1989. The Great Dark Spot is the size of the Earth and winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. Date: 08/23/89 Range: 2.8 million km. (1.7 million miles) Smallest Resolvable Feature: 50 km or 31 miles This Voyager 2 image shows the last face on view of the Great Dark Spot that Voyager 2 will take with the narrow angle camera. It was made 45 hours before the closest approach to Neptune. the image shows feathery white clouds that overlie the boundary of the dark and light blue regions. the pinwheel (spiral) structure of both the dark boundary and the white cirrus suggest a storm system rotating counterclockwise. Periodic, small - scale patterns in the white clouds, possibly waves, are short - lived and do not persist from one Neptunian rotation to the next. This color composite was made from the clear and green filter images / Bridgeman Images

Neptune Chassee from its orbit by Jupiter - Artist's view illustrating a theory that Uranus and Neptune formed between Jupiter and Saturn and then were driven out of their orbits by Jupiter
Neptune Chassee from its orbit by Jupiter - Artist's view illustrating a theory that Uranus and Neptune formed between Jupiter and Saturn and then were driven out of their orbits by Jupiter

PIX4623946: Neptune Chassee from its orbit by Jupiter - Artist's view illustrating a theory that Uranus and Neptune formed between Jupiter and Saturn and then were driven out of their orbits by Jupiter / Bridgeman Images

Facade of the Museum of Modern Art of the City of Paris, Palais de Tokyo in Paris. Construction 1937, architects: Andre Aubert, Paul Viard, Jean Claude Dondel and Marcel Dastugue. Built for the 1937 World Exposition, it now houses in the east wing the Museum of Modern Art of the City of Paris. France, an immense allegory of Antoine Bourdelle, dominates the court in all its verticalite. Built in 1948 by the Free French Association.
Facade of the Museum of Modern Art of the City of Paris, Palais de Tokyo in Paris. Construction 1937, architects: Andre Aubert, Paul Viard, Jean Claude Dondel and Marcel Dastugue. Built for the 1937 World Exposition, it now houses in the east wing the Museum of Modern Art of the City of Paris. France, an immense allegory of Antoine Bourdelle, dominates the court in all its verticalite. Built in 1948 by the Free French Association.

TEC4623984: Facade of the Museum of Modern Art of the City of Paris, Palais de Tokyo in Paris. Construction 1937, architects: Andre Aubert, Paul Viard, Jean Claude Dondel and Marcel Dastugue. Built for the 1937 World Exposition, it now houses in the east wing the Museum of Modern Art of the City of Paris. France, an immense allegory of Antoine Bourdelle, dominates the court in all its verticalite. Built in 1948 by the Free French Association. / Bridgeman Images

The Palais de Tokyo has Paris from Avenue de New York, Paris 16th. Construction 1937, architects: Andre Aubert, Paul Viard, Jean Claude Dondel and Marcel Dastugue. Built for the 1937 World Exposition, it now houses in the east wing the Museum of Modern Art of the City of Paris. France, an immense allegory of Antoine Bourdelle, dominates the court in all its verticalite. Built in 1948 by the Free French Association.
The Palais de Tokyo has Paris from Avenue de New York, Paris 16th. Construction 1937, architects: Andre Aubert, Paul Viard, Jean Claude Dondel and Marcel Dastugue. Built for the 1937 World Exposition, it now houses in the east wing the Museum of Modern Art of the City of Paris. France, an immense allegory of Antoine Bourdelle, dominates the court in all its verticalite. Built in 1948 by the Free French Association.

TEC4623993: The Palais de Tokyo has Paris from Avenue de New York, Paris 16th. Construction 1937, architects: Andre Aubert, Paul Viard, Jean Claude Dondel and Marcel Dastugue. Built for the 1937 World Exposition, it now houses in the east wing the Museum of Modern Art of the City of Paris. France, an immense allegory of Antoine Bourdelle, dominates the court in all its verticalite. Built in 1948 by the Free French Association. / Bridgeman Images

Residential buildings in Paris 16th.
Residential buildings in Paris 16th.

TEC4624030: Residential buildings in Paris 16th. / Bridgeman Images

Neptune - Illustration - Artist's view of Neptune with its ring system and large dark spot observed by the Voyager 2 probe in 1989. This image suggests how Neptune might look from a position in space above the plane of its rings. Like Uranus, Neptune is a Gas Giant, composed primarily of hydrogen and helium gases surrounding a relatively small, dense core of molten rock and metal. Also like Uranus, Neptune has charcoal - colored rings, although they appear to be fewer in number than Uranus's. While Neptune's diameter is slightly less than Uranus ', it has more mass. Neptune's blue color is due to the presence of methane in its upper atmosphere. The dark spot in the southern hemisphere beneath the rings, dubbed “” The Great Dark Spot,””” is believed to be a giant storm which was active in 1989 when Voyager 2 photographed Neptune. Just beyond the rings at Neptune's 7 o'clock position, barely discernable from the background stars, is the tiny satellite Proteus. With an average diameter of 260 miles, Proteus is the second - largest of Neptune's eight known satellites (a distant second compared to Neptune's largest satellite Triton which has a diameter of 1,677 miles)
Neptune - Illustration - Artist's view of Neptune with its ring system and large dark spot observed by the Voyager 2 probe in 1989. This image suggests how Neptune might look from a position in space above the plane of its rings. Like Uranus, Neptune is a Gas Giant, composed primarily of hydrogen and helium gases surrounding a relatively small, dense core of molten rock and metal. Also like Uranus, Neptune has charcoal - colored rings, although they appear to be fewer in number than Uranus's. While Neptune's diameter is slightly less than Uranus ', it has more mass. Neptune's blue color is due to the presence of methane in its upper atmosphere. The dark spot in the southern hemisphere beneath the rings, dubbed “” The Great Dark Spot,””” is believed to be a giant storm which was active in 1989 when Voyager 2 photographed Neptune. Just beyond the rings at Neptune's 7 o'clock position, barely discernable from the background stars, is the tiny satellite Proteus. With an average diameter of 260 miles, Proteus is the second - largest of Neptune's eight known satellites (a distant second compared to Neptune's largest satellite Triton which has a diameter of 1,677 miles)

PIX4624079: Neptune - Illustration - Artist's view of Neptune with its ring system and large dark spot observed by the Voyager 2 probe in 1989. This image suggests how Neptune might look from a position in space above the plane of its rings. Like Uranus, Neptune is a Gas Giant, composed primarily of hydrogen and helium gases surrounding a relatively small, dense core of molten rock and metal. Also like Uranus, Neptune has charcoal - colored rings, although they appear to be fewer in number than Uranus's. While Neptune's diameter is slightly less than Uranus ', it has more mass. Neptune's blue color is due to the presence of methane in its upper atmosphere. The dark spot in the southern hemisphere beneath the rings, dubbed “” The Great Dark Spot,””” is believed to be a giant storm which was active in 1989 when Voyager 2 photographed Neptune. Just beyond the rings at Neptune's 7 o'clock position, barely discernable from the background stars, is the tiny satellite Proteus. With an average diameter of 260 miles, Proteus is the second - largest of Neptune's eight known satellites (a distant second compared to Neptune's largest satellite Triton which has a diameter of 1,677 miles) / Bridgeman Images

Haussmannien building in Paris.
Haussmannien building in Paris.

TEC4624091: Haussmannien building in Paris. / Bridgeman Images

Planetary nebula M76 (NGC 650 - 51) in Persee - Planetary nebula M76 (NGC 650 - 51) in Persia
Planetary nebula M76 (NGC 650 - 51) in Persee - Planetary nebula M76 (NGC 650 - 51) in Persia

PIX4622876: Planetary nebula M76 (NGC 650 - 51) in Persee - Planetary nebula M76 (NGC 650 - 51) in Persia / Bridgeman Images

Rue de la Bucherie in Paris.
Rue de la Bucherie in Paris.

LBY4622987: Rue de la Bucherie in Paris. / Bridgeman Images

Planetary Owl Nebula - M97 (NGC 3587) in the Great Bear - Planetary Owl Nebula - M97 (NGC 3587) in the Great Bear
Planetary Owl Nebula - M97 (NGC 3587) in the Great Bear - Planetary Owl Nebula - M97 (NGC 3587) in the Great Bear

PIX4623012: Planetary Owl Nebula - M97 (NGC 3587) in the Great Bear - Planetary Owl Nebula - M97 (NGC 3587) in the Great Bear / Bridgeman Images


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