PIX4633576: Aurore Boreale plane view - Aurora Borealis seen from plane - Aurore boreale observed from an aircraft, between Bodo and Oslo, March 27, 2017. Aurora borealis seen from a plane between Bodo and Oslo on March 27, 2017 / Bridgeman Images

PIX4632253: Cloudless Earth - Mosaic of Earth images collected by Terra/MODIS, Landsat - 1/MSS, Landsat - 5/TM and Landsat - 7/ETM+between 1972 and 2001 / Bridgeman Images

PIX4634401: Artist's view of space-time - Spacetime - Artist's view illustrating the microscopic and macroscopic structure of space-time. Artwork / Bridgeman Images

PIX4632435: Earth seen by the Envisat satellite - Vegetation map - Mosaic of images obtained by the European Envisat satellite. Dark brown indicates lack of vegetation, green darts abundant vegetation / Bridgeman Images

TEC4634765: The city of Algiers Algiers - Algeria - / Bridgeman Images

PIX4634103: Evolution of the Universe - Artist's view representing the Big Bang and the movement of expansion of the Universe / Bridgeman Images

PIX4630684: Cratere Manicouagan - Quebec - seen by shuttle 04/2002 - Impact Cratere Manicouagan, Quebec, seen by shuttle Atlantis STS - 110 in April 200 / Bridgeman Images

PIX4632004: Earth seen by satellite DSCOVR - Earth seen by satellite DSCOVR - Earth photo obtained by satellite Deep Space Climate Observatory (DSCOVR) on July 6, 2015. This satellite, launched on 11 February 2015, and placed in orbit 1.6 million km, at the point of Lagrange L1 (about 4 times farther than the orbit of the Moon), allows us to obtain views of the Earth as a whole. The journey has been a long one for the Deep Space Climate Observatory (DSCOVR). Once known as Triana, the satellite was conceived in 1998 to provide continuous views of Earth, to monitor the solar wind, and to measure fluctuations in Earth's albedo. The mission was put on hold in 2001, and the partly - built satellite ended up in storage for several years with an uncertain future. In 2008, the National Oceanic and Atmospheric Administration (NOAA), NASA, and the U.S. Air Force decided to refurbish and update the spacecraft for launch / Bridgeman Images

PIX4632636: Comets have the origin of life on Earth - Comets bring life on Earth - An artist's view of the Earth bombed by comets 4 billion years ago. Comets may have brought the molecules necessary for the appearance of life on Earth. The Moon at that time was much closer to Earth than today. Impacting comets may have brought life to the early Earth. 4 billion years ago, Moon was closer than today / Bridgeman Images

PIX4632781: Ichthyostega & Rhacophyton - An Ichthyostega emerge water 365 million years ago to the upper Devonian. Half-fish, half-terrestrial animal, the Ichthyostega was about 1 metre long. On the left, one of the first species of fern, Rhacophyton ceratangium. A Late Devonian Ichthyostega emerges from waters of a floodplain 365 million years ago in what is today the Canadian Arctic. On the left is a four - foot - tall Rhacophyton ceratangium, an ancient shrub that is thought to be one of the earliest ferns. On the horizon are more Rhacophyton, along with towering Archaeopteris and Lycopsids in various stages of growth / Bridgeman Images

PIX4632392: Earth by satellite: the four seasons - Earth by satellite - The four seasons - The Earth seen from top to bottom, in March 2004, June 2004, September 2004 and December 2004. These images show seasonal changes on the surface of the planet (except for poles). Bathymetric and topographic maps of the Earth based on data obtained from the Terra satellite and its MODIS (Moderate Resolution Imaging Spectroradiometer) instrument. Earth from top to bottom in March 2004, June 2004, September 2004 and December 2004. These images show the seasonal changes on earth surface (except for North and South poles). Image made with datas from MODIS instrument on Terra satellite / Bridgeman Images

PIX4633123: Ocean level rise - North America - North America with sea level+100m - Artist's view showing North America as it would appear if the ocean level increased by 100 metres. This would happen if all glaciers on Earth melt. This is how North America may appear with mean sea level about 100 meters (330 feet) above today's. Such a dramatic rise in sea level could occur if all of the Earth's glaciers were to melt. In this image the Gulf of Mexico and Atlantic ocean have inundated almost all of southeastern United State including the entire state of Florida, almost all of Louisiana, and significant portions of the other southeastern states and the District of Columbia. Major US cities submerged include New York City, Boston and Houston, and on the west coast Los Angeles, San Francisco, and much of San Diego. To the north the Hudson Bay has grown to claim much of the Canadian provinces of Ontario, Quebec, Manitoba and Nunavut. Further north Greenland's entire ice sheet, 110,000 years old and holding about 700,000 cubic miles of fresh water, has completely melted. A likely cause of a catastrophic melting of the Earth ice stores would be a change in climate, a sudden rise in the global temperature accelerated by a runaway greenhouse effect. While the amount of water held by the Earth's glaciers can be calculated with some accuracy, the exact mechanism that would set those glaciers to melting, and how long it would take for them to melt, is poorly understood. Some models suggest that several millennia of higher temperatures would be required to melt all the world's glaciers, while others predict much faster processes on the scale of centuries, or even decades / Bridgeman Images

PIX4632814: Ichthyostega - View of an Ichthyostega 365 million years ago at the upper Devonian. Half-fish, half-terrestrial animal, the Ichthyostega was about 1 metre long. On the left, one of the first species of fern, Rhacophyton ceratangium. In the foreground, prehistoric arthropods (diplopods and cockroaches). A close - up of a three foot long Late Devonian Ichthyostega 365 million years ago in what is today the Canadian Arctic. Flanking the Ichthyostega are Rhacophyton ceratangium, ancient shrubs that are thought to be one of the earliest ferns. The reddish fruit - like nodules attached to the fronds on the right are sporangia, enclosures in which spores are formed. The large tree - like trunk on the far left is the base of a young Archaeopteris. In the foreground are prehistoric arthropods - - a millipede on the left and on the right cockroaches on trunk of a decaying Lycopsid. Arthropods had been walking the Earth for 40 million years before vertebrates like Ichthyostega began venturing ashore. Ichthyostega was one of the earliest tetrapods, a descendent of lobe - finned fishes and ancestor of amphibians. Ichthyostega had lungs and seven - toed limbs that allowed it to move about the shallow waters and shores of swamps and floodplains. It was among the first terrestrial vertebrates / Bridgeman Images

PIX4632958: Scelerate Wave - Artist View - Rogue Wave - Artist view - A ship sees a scelerate wave rising in front of it several tens of metres high. A ship with a huge wave reaching height of 20 to 30 meters / Bridgeman Images

PIX4634735: Miranda satellite d'Uranus - Miranda satellite seen by the Voyager 2 probe on January 24, 1986. With a diameter of 480 km, it is the smallest of the five main satellites of Uranus. Mosaic of several images / Bridgeman Images

PIX4633980: Aurore boreale - Lofoten - Norway - Dancing aurora and snow-covered mountains of Lofoten Islands, Norway / Bridgeman Images

PIX4632228: Earth/Stars background - Photomontage of the Earth with a star background / Bridgeman Images

PIX4632668: Earth seen at night - 2012 - City Lights 2012 - Earth observed at night by satellite. Composite image obtained by the Suomi NPP satellite in April and October 2012. Composite image of Europe, Africa, and the Middle East at night assembled from data acquired by the Suomi NPP satellite in April and October 2012 / Bridgeman Images

PIX4632180: The Earth seen by Apollo 11 in July 1969. - One - third of the Earth's sphere illuminated, Earth's terminator, sunglint, a portion of East Africa, as photographed from the Apollo 11 spacecraft during its lunar landing mission / Bridgeman Images

PIX4632459: Earth seen at night - Earth seen at night - Earth centred on Australia observed at night by satellite / Bridgeman Images

PIX4632660: Life on Earth: the Sun and Comets - Life on Earth: Sun and Comets - All living organisms on Earth are exclusively left amino acids. The origin of life homochiralite, the asymmetry present in amine acids, could be derived from solar radiation distruding the right amino acids accumulated on comets during the formation of the solar system. Life on Earth is made of left handed amino acids, almost exclusively. The origin of biomolecular homochirality could come from the sun light destroying right handed amino acids in comets during the formation of solar system / Bridgeman Images

PIX4633021: The Earth in a period of glaciation - Artist's view - The Earth in a period of glaciation - Artist's view / Bridgeman Images

PIX4634276: Distance Scale in the Universe - Representation of the Big Bang to the Sun. Each graduation on the scale indicates the distance in light-years. The scale ranges from O light-years to the right, Earth's position, to 10 billion light-years to the left. The Big Bang is about 14 billion light years ago / Bridgeman Images

PIX4634021: Noctulescent clouds - Noctilucent clouds: July 6, 2016, Spicheren, France. These rare clouds are called noctilucent or “” night shining” as they seem to glow in the dark. They are caused by ice crystals at about 80 km altitude. These crystals reflect sunlight when the sun is well below the horizon. They are properly known as polar mesospheric clouds and are under intense study as it remains a mystery as to how they are formed. Date: July 6, 2016. Location: Spicheren, France / Bridgeman Images

PIX4632872: Carboniferous fauna and flora - Calamites & Meganeura - Meganeura, giant dragonflies whose wingspan could exceed 80 cm, fly among calamites and asterophyllites. Giant Meganeura, resembling and related to present - day dragonflies, flutter between Calamites and Asterophyllites in a Carboniferous scene from over 300 million years ago. Now extinct, Calamites and Asterophyllites are related to today's horsetails, though they grew much larger. The Calamites resembled modern “” Christmas tree”” conifers, while the Asterophyllites looked somewhat like modern Thuja (arborvitae) / Bridgeman Images

PIX4633717: Watching an Aurora boreale - Norway - Watching an Aurora borealis - Norway - A woman admires an aurora boreale on Uttakleiv Beach, Lofoten Islands, Norway. A woman looks at the Northern Lights, next to her tent, on the beach at Uttakleiv, Lofoten Islands, Norway / Bridgeman Images

PIX4634643: Theorie des Cordes-vue d'artiste - Superstring theater- Artwor / Bridgeman Images

PIX4631742: Earth by Meteosat - 8 05/03 - Earth seen by satellite Meteosat - 8 the 09/05/2003 / Bridgeman Images

RCT4631796: The city hall of Oslo in Norway. Construction 1950, architects Magnus Poulsson and Arnstein Arneberg. Photography 15/10/04., Castan, Remy / Bridgeman Images

PIX4634063: Hurricane Irma seen by satellite 09/2017 - Hurricane Irma 09/2017: Hurricane Irma on September 6, 2017. Image obtained by the American satellite GOES-16. GOES-16 captured this geocolor image of Hurricane Irma approaching Anguilla at about 7:15 am (eastern), September 6, 2017. Irma's maximum sustained winds remain near 185 mph with higher gusts, making it a category 5 hurricane on the Saffirm-Simpson Hurricane Wind Scale. This image, captured as daylight moves into the area, offers a blend of both, with nighttime features on the left side of the image and daytime on the right / Bridgeman Images

PIX4632734: Moon Sunrise on Early Earth - Moon Sunrise on Early Earth - Artist's view of Earth about 4 billion years ago when the Earth began to cool. Seas formed in the impact basins. The Moon at the time was much closer than today, Dixon, Don (b.1951) / Bridgeman Images

PIX4632742: The First Life Forms on Earth - Eoarchean Earth - 3.8 billion years ago, 770 million years after the formation of the Earth, the first life forms appeared as a unicellular organism. Bacteries and archeobacteries (archaea) began to populate the Earth's surface while the atmosphere was still filled with volcanic gases and probably without oxygen. In this illustration, these micro-organisms came out of the ocean to attach themselves to the rock remains of a caldera, bringing colour to this monochrome landscape. 770 million years after the formation of the Earth - - 3.8 billion years ago - - the first life may have appeared in the form of simple, single - celled organisms. Bacteria and archaea may have even found a way to populate the otherwise sterile and inhospitable surface. The atmosphere would likely have consisted solely of gases vented by volcanoes: carbon dioxide, carbon monoxide, sulfur dioxide, nitrogen, methane, hydrogen, methane, ammonia, and water vapor. In this image, a variety of single - celled organisms have ventured out of the ocean and onto the rocky remains of two volcanic calderas, adding color to an otherwise bleak and monochromatic landscape. While the lack of breathable oxygen would be anathema to complex life forms like ourselves, this primitive atmosphere was a rich source of sustenance for these terrestrial vanguards / Bridgeman Images

PIX4631960: Earth seen by satellite - Earth seen by satellite - Earth seen by satellite centree on the Pacific Ocean. Image recomposed from Terra satellite data. Global Earth centered on Pacific Ocean seen by satellite Terra / Bridgeman Images

PIX4633173: La Pangee - Artist's view - Artist's view of the Earth about 300 million years ago, with its only continent: the Pange, Dixon, Don (b.1951) / Bridgeman Images

PIX4633714: Observation of an Aurora boreale in the light of the Moon - Norway - Watching an Aurora borealis with Moonlight - Norway / Bridgeman Images

PIX4634712: Uranus and three satellites seen by Voyager 2 - Image obtained by the Voyager 2 probe in January 1986 showing the planet Uranus accompanied by the satellites Ariel (top right), Miranda (closest to the planet) and Umbriel (bottom left). This Voyager photograph of Uranus taken in january 1986 is a composite of for images taken by the narrow angle camera. At this range, clouds and other features in the atmosphere as small as 1,370 km. could be detected by Voyager 2. Yet, no such features are visible. This view is toward the illuminated south pole of Uranus. The predominant blue color is the result of atmospheric methane, which absorbs the red wavelengths from incoming sunlight. The spot at the upper left edge of the planet's disk reulted from the removal of a network mark used in making measurments on the photograph. Three of Uranus' five known satellites are visible; Miranda (at far right, closest to the planet), Ariel (next out, at top), and Umbriel (lower left). Titania and Oberon are now outside the narrow angle camera's field of view when it centered on the planet. This color composite was made from images taken through blue, green, orange, and clear filters / Bridgeman Images