PIX4619455: Nebula Trifide (M20) in the constellation Sagittarius. - Nebula Trifide (M20) in the constellation Sagittarius. - View of the Nebula Trifide (M20/ngc 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light of Earth. Composite image, 9 hours of installation / Bridgeman Images

PIX4619560: Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Measuring some forty light years across, this nebula contains enough gas to make many thousands of suns. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the object its name. Trifid is located in Sagittarius constellation between 5000 and 10 000 light - years away / Bridgeman Images

PIX4619660: Hourglass Nebula in M8 - The Hourglass Nebula in M8, NGC 6523 - View of the Hourglass Nebula in the heart of the Lagoon Nebula (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 light years, it is a region of star formation whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. Image made with the 1.5m Danish telescope of La Silla in Chile. At the heart of the Lagoon Nebula in Sagittarius lies the diminutive Hourglass Nebula. Its gases are excited primarily by two massive O-type supergiants designated Herschel 36 and 9 Sagittarii. These two stars lie to the west of NGC 6530 and are separated from it by a dark lane which divides the nebula like a black lagoon, giving it its name. Twisted funnel shaped clouds are visible close to the illuminating stars, especially Herschel 36. The twists are due to shear forces between the hot excited gases at the surface and the cold interior of the clouds. These stars are probably less than 10,000 years old, about as old as the Hourglass itself, and are evidence of recent star-formation in this very dusty and active region. Image taken with the ESO/Danish 1.5m telescope at La Silla observatory in Chile / Bridgeman Images

TEC4619756: Panoramic view of the Mitte district in Berlin Mitte district - Berlinae - / Bridgeman Images

TEC4619849: Wittenbergplatz metro station, Schoneberg district in Berlin (Germany).Architect Alfred Grenander (1863-1931), construction 1911-1913. First underground metro station in Berlin, on the first electric line. Built in reference to the classical buildings of the 18th century. Photography 2003. / Bridgeman Images

TEC4611672: Times Square in New York (United States). / Bridgeman Images

TEC4611685: Times Square in New York (United States). / Bridgeman Images

TEC4611801: Advertised in Times Square in New York (United States). / Bridgeman Images

PIX4611872: Spiral Galaxy NGC 4725 in Berenice's Hair - Spiral galaxy NGC 4725 in Coma Berenice / Bridgeman Images

PIX4611880: Spiral Galaxy NGC 4725 in Berenice's Hair - Spiral galaxy NGC 4725 in Coma Berenice / Bridgeman Images

TEC4611984: Wall Street at the corner of Nassau Street in Manhattan, New York, USA. / Bridgeman Images

PIX4611992: Elliptical galaxy NGC 4881 and distant galaxies - Elliptical galaxy NGC 4881 and distant galaxies - The elliptical galaxy NGC 4881 (upper left) is about 300 million years away - light from Earth. NGC 4881 is located in the Coma galaxy cluster that contains at least 1,000 galaxies and is five times farther from us than the Virgin's cluster. Almost all the objects visible in this photo are located far behind the Coma cluster, except for the spiral galaxy to the right of Ngc 4881. Image obtained by the Hubble Space Telescope in 1994. This photo mosaic, which shows a field of distant galaxies, is a computer enhanced reproduction of a picture taken 4 March 1994 with the repaired Hubble Space Telescope. The brightest object in this picture is NGC 4881. It is a 13th - magnitude elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than 5 times farther away than the Virgo Cluster. Except for a 16th - magnitude Coma spiral at the right and a few foreground stars of the Milky Way, almost everything else in this field lies far beyond the Coma Cluster. There is a fascinating assortment of background galaxies, including an apparent galaxian merger in progress / Bridgeman Images

PIX4612005: Spiral Galaxy NGC 4911 - Galaxy Spiral NGC 4911 - The NGC 4911 galaxy photographed here by the Hubble Space Telescope (HST) is located in the Coma galaxy cluster (Abell 1656) about 320 million light years ago. Image obtained from different cliches obtained from 2006 to 2009, 28 hours of installation in total. A long - exposure Hubble Space Telescope image shows a majestic face - on spiral galaxy located deep within the Coma Cluster of galaxies, which lies 320 million light - years away in the northern constellation Coma Berenices. The galaxy, known as NGC 4911, contains rich lanes of dust and gas near its center. These are silhouetted against glowing newborn star clusters and iridescent pink clouds of hydrogen, the existence of which indicates ongoing star formation. Hubble has also captured the outer spiral arms of NGC 4911, along with thousands of other galaxies of varying sizes. This natural - color Hubble image, which combines data obtained in 2006, 2007, and 2009 from the Wide Field Planetary Camera 2 and the Advanced Camera for Surveys, required 28 hours of exposure time / Bridgeman Images

TEC4612024: The promenade planted on the High Line in New York (New York), United States (United States). Photography 26/09/10 / Bridgeman Images

PIX4612036: Spiral Galaxy NGC 4945 in Centaurus - Spiral galaxy NGC 4945 in Centaurus - The barree spiral galaxy NGC 4945 is located about 13 million years ago - light from Earth. This remarkable spiral galaxy seen almost edge - on is located at about 13 million years away in southern constellation of Centaurus. The galaxy is extremely dusty, and it is seen through dust in the Milky Way / Bridgeman Images

PIX4612096: Spiral galaxy M63 (NGC 5055) in Hunting Dogs - Spiral galaxy M63 - The spiral galaxy M63 (NGC 5055) is about 35 million years away - light from Earth. Image obtained with a 50 cm telescope, composite of several poses. M63 (NGC 5055) is a spiral glaxy in the contellation Canes Venatici at about 35 million light - years from Earth / Bridgeman Images

PIX4612157: Centaurus A Elliptical Galaxy (NGC 5128) in the Centaur - Galaxy Centaurus A - The NGC 5128 galaxy is about 13 million years away - light from Earth. This image obtained by the Hubble Space Telescope in 1998 shows the star flames that occur in the dark band of the galaxy. In blue, these are the clusters of newly shaped young stars. At the top left, a photo of the galaxy obtained from the ground. This giant galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. NGC 5128 is the nearest large elliptical galaxies to our sun. It is also the nearest of the giant radio galaxies, possessing an active galactic nucleus (AGN) and optically one of the most luminous galaxies in the sky. Among many other things NGC 5128 is also the prototypical postmerger elliptical galaxy. Structural peculiarities including the prominent rotating disk of stars and gas and the complex shell structure of its halo point to a large scale merger within the last billion years. Tidal streams of young stars have also been identified in the halo of NGC 5128 thought to have occurred by cannibalization of a nearby gas rich dwarf galaxy some 300 million years ago, long after the large scale merger. Elliptical galaxies are typically devoid of gas, dust and young stars. The unexpected presence of gas rich disk elements within the structure of NGC 5128 supports the current belief that accretions and mergers of low mass galaxies may be an important agent in the evolution of galaxy formation. As a radio galaxy, NGC 5128 belongs to the subgroup of galaxies called Active Galaxies, which include Quasars, Seyfert galaxies, Blazars and Radio Galaxies. Active galaxies are distinguished by their prodigious energy output which cannot be explained by their stellar populations and must have another source. Active galaxies have in common an “Active Galactic Nucleus (AGN)”” which is beli / Bridgeman Images

PIX4620553: Nebula NGC 7023 in Cephee - Iris Nebula in Cepheus - The nebula of the Iris (NGC 7023) is a reflexion nebula illuminated by the star HD 200775. Infrared observations indicate that this nebula contains PAH (aromatic polycyclic hydrocarbons), molecules composed of carbon atoms and hydrogen. NGC 7023 (The Iris Nebula) is located 1400 Light Years away. The bright star HD 200775 shining through the nebula NGC 7023 is a 10 solar mass star centrally imbedded in a region surrounded by ambient molecular cloud material. Infrared observations indicate that this nebula may contain complex carbon molecules known as PaHS / Bridgeman Images

PIX4620610: Nebula NGC 7538 in Cassiopee - Nebula NGC 7538 in Cassiopeia - NGC 7538 is about 7000 light years away in the constellation Cepheus / Bridgeman Images

LBY4620719: Friedrichstrasse Station, Mitte Quarter aae Berlin (Germany). / Bridgeman Images

LBY4620793: The Brandenburg Gate in Berlin (Germany). Architecteae Carl Gotthard Langhans, 1791. Photography 10/10/99. / Bridgeman Images

PIX4620819: Field around the Nebula Henize 55 - The Henize 55 star forming region in the LMC - Henize 55 (NGC 2014), on the right, is a star-forming region located north of the Great Magellan Cloud. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. The nearby Large Magellanic Cloud (LMC) is a very active star - forming galaxy. The most massive region of star formation is around 30 Doradus (the Tarantula nebula) which can be seen with the unaided eye, but hundreds of lesser examples are visible with a telescope. This picture shows one of the more intriguing, NGC 2014 (Henize 55), at right. It contains cluster of hot, young stars, almost hidden in the brightest part of the nebula. The energetic ultraviolet light from these stars is absorbed by hydrogen and produces the distinctive red glow from an enormous distance around the cluster. This picture was made photographically from three glass plates taken with the UK Schmidt telescope of Siding Spring / Bridgeman Images

TEC4620880: Galerie Victor Emmanuel II in Milan, Italy. Architect Giuseppe Mengoni (1829-1877). / Bridgeman Images

PIX4621177: Taurus Molecular Cloud - Taurus Molecular Cloud - This region is located on the border of the Taurus and Persee constellations. Covering about 20 x 30 degres, this image shows a complex of emitted nebulae, star clusters, reflexion nebulae and dark nebulae. A molecular cloud is a region of dense gas and dust composed mainly of molecular hydrogen and helium. It's a birthplace of stars. The Molecular Cloud of Taurus is located about 400 years ago - light, and is one of the closest molecular clouds to our solar system. The California Nebula (NGC 1499), an emission nebula located about 1000 years ago - is visible at the top right. The dark nebulae B7, B18 and B19 are visible near the center of the image. Les Pleiades, M45, is the open cluster at the bottom right center. The open clusters NGC 1817, NGC 1746, NGC 1647 are on the left side of the image. The Hyades, Melotte 25, is a V-shaped cluster at the bottom left. It is the closest open cluster, located at a distance of about 151 light years. Aldebaran, Alpha Tauri, a bright red star with a magnitude of 0.75 to 0.95, is located at one end of the V, but does not belong to the cluster. The Taurus Molecular Cloud (TMC) is located on the border of the constellations of Taurus and Perseus. It is a large dense area of gas and dust in space made mostly of molecular hydrogen and helium. It is a birth place of stars, which form from the material in the cloud. Covering about 20 x 30 degrees, this wide - angle image shows a complex of bright red emission nebulae, star clusters, blue reflection nebulosity, and complex dark nebulae. The TMC is located about 400 light years away, and is one of the closest molecular clouds to our solar system. The California Nebula (NGC 1499), a very large red emission nebula, is at upper right. Emission nebulae are made up of glowing hydrogen gas. Located in / Bridgeman Images

PIX4621230: Nebulae B175 and VDB 152 in Cephee - Nebulae B175 and VDB 152 in Cephe / Bridgeman Images

PIX4620019: Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The Eagle nebula in Serpens - The M16 star cluster is a cluster of young stars distant from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associated recent star formation. This example is about 7000 light years distant / Bridgeman Images

TEC4620040: Television Tower (Fernsehturm), Mitte Quarter in Berlin (Germany). Realisation of the Schweizer Tscheschner and Schulz Urban Construction Office, 1965-1969. Photography 10/08/03. / Bridgeman Images

TEC4620175: The Cathedrale Saint Hedwidge, Bebelplatz in Berlin (Germany). Construction 1747-1773, architects Jean Legeay and Johann Boumann. / Bridgeman Images

PIX4620256: Detail in the nebula Omega (M17) - Part of M17 nebula - Detail in the nebula Omega (M17), a region of star formation. Image obtained from the 3.5-metre NTT telescope of the European Observatory of La Silla in Chile. The Omega Nebula (M17) is one of the youngest and most massive star - forming regions in the Milky Way. Active star - birth started a few million years ago and continues through today. The brightly shining gas shown in this picture is just a blister erupting from the side of a much larger dark cloud of molecular gas. The dust that is so prominent in this picture comes from the remains of massive hot stars that have ended their brief lives and ejected material back into space, as well as the cosmic detritus from which future suns form. Three - colour composite image of the Omega Nebula (Messier 17), based on images obtained with the EMMI instrument on the ESO 3.58 - metre New Technology Telescope at the La Silla Observatory. North is down and East is to the right in the image. It spans an angle equal to about one third the diameter of the Full Moon, corresponding to about 15 light - years at the distance of the Omega Nebula / Bridgeman Images

PIX4620263: Southern Crown Nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, a more distant globular cluster, NGC 6723 cluster in Sagittarius is about 30,000 light years away from Earth / Bridgeman Images

TEC4620331: The Pergamonnumseum (Pergamon Museum), before its restoration, Museum Island in Berlin (Germany). Construction 1909-1930, architects Ludwig Hoffmann (1852-1932) and Alfred Messel (1853-1909). Photography 10/08/03. / Bridgeman Images

PIX4620402: Nebula NGC 6914 in the Swan - 2005 Image acquired at the Nighthawk Observator / Bridgeman Images

TEC4620412: Frankfurter Tor, Friedrichshain District in Berlin (Germany). Architecet Hermann Henselmann (1905-1995), 1957-1961. Photography 10/08/03. / Bridgeman Images

PIX4620436: North America and Pelican Nebulae in the Swan - North America and Pelican Nebulae in the Swan - The North America Nebula (NGC 7000) is a large emission nebula located near the Deneb star (the bright star to the right of the image) in the constellation of Swan. Between NGC 7000 and Deneb, the Pelican nebula, IC 5070 / Bridgeman Images

PIX4612662: Spiral galaxy M101 in the Great Bear - Spiral galaxy M101 in Ursa Major - The galaxy M101 (NGC 5457) is located about 27 million years away from Earth. Image obtained with a 40 cm telescope, composite of several images, 2h30 pose. M101 (NGC 5457) is about 27 Mly away. Composite image obtained with a RC 16”” telescope / Bridgeman Images

PIX4612686: Spiral galaxy M101 in the Great Bear - Spiral galaxy M101 in Ursa Major - The galaxy M101 (NGC 5457) is located about 27 million years away from Earth. It spans more than 170,000 light years, almost double the size of our galaxy. We think that of the trillion stars in it, 100 billion stars could be similar to our Sun. Composite image obtained from 51 different clicks made by the Hubble space telescope from March 1994 to January 2003 and from ground photos at Kitt Peak and CFHT in Hawaii. Spiral galaxy M101 is a beautiful, large, face - on spiral galaxy located about 27 million light - years away in the constellation Ursa Major. This galaxy's portrait is actually composed of 51 individual Hubble exposures, in addition to elements from images from ground - based photos. The giant spiral disk of stars, dust, and gas is 170,000 light - years across or almost twice the diameter of our galaxy, the Milky Way. M101 is estimated to contain at least one trillion stars. Approximately 100 billion of these stars could be like our Sun in terms of temperature and lifetime. The galaxy's spiral arms are sprinkled with large regions of star - forming nebulae. These nebulae are areas of intense star formation within giant molecular hydrogen clouds. Brilliant young clusters of hot, blue, newborn stars trace out the spiral arms. The disk of M101 is so thin that Hubble easily sees many more distant galaxies lying behind the galaxy / Bridgeman Images