YOU4420136: View of Place Vendome and the Vendome Column, the square designed by Jules Hardouin Mansart (1646-1708), architect of King Louis XIV, The column was erected in 1810 by Naoleon to commemorate the battle of Austerlitz, inspired by the Trajane column in Rome, covered with low reliefs representing scenes of battles, it is surmounted by a statue of Napoleon 1st by Auguste Dumont (1801-1884). Photography, KIM Youngtae, Paris. / Bridgeman Images
PIX4582940: Remnants of the supernova Cassiopee A in X-rays - visible and infrared - This stunning picture of the supernova remnant Cassiopeia A (Cas A) is a composite of images taken by three of Nasa's Great Observatories. Infrared data from the Spitzer Space Telescope are colored red; optical data from the Hubble Space Telescope are yellow; and X - ray data from the Chandra X - ray Observatory are green and blue. Cas A is the 300 - year - old remnant created by the supernova explosion of a massive star. Each Great Observatory image highlights different characteristics of the remnant. Spitzer reveals warm dust in the outer shell with temperatures of about 10 degrees Celsius (80 degrees Fahrenheit), and Hubble sees the delicate filamentary structures of warmer gases about 10,000 degrees Celsius. Chandra shows hot gases at about 10 million degrees Celsius. This hot gas was created when ejected material from the supernova smashed into surrounding gas and dust at speeds of about ten million miles per hour. A comparison of the infrared and X - ray images of Cas A should enable astronomers to better understand how relatively cool dust grains can coexist in the superhot gas that produces the X - rays. It should also help to determine whether most of the dust in the supernova remnant came from the massive star before it exploded, or from the rapidly expanding supernova ejecta. The turquoise dot at the center of the shell may be a neutron star created during the supernova. Blue Chandra data were acquired using broadband X - rays (low through high energies); green Chandra data correspond only to intermediate energy X - rays; yellow Hubble data were taken using a 900 nanometer - wavelength filter, and red Spitzer data are from the telescope's 24 - micron detector. Observation Dates 9 pointings between Feb 8 - May 5, 2004 Observation Time 11 days, 14 hours Distance Estimate About 10,000 light year / Bridgeman Images
PIX4584791: Artist view of Cygnus X-1 - Cygnus X-1 is a binary star X and was the first black hole candidate. This system consists of the 226868 HD star, a supergeant star, orbiting around a black hole. A stellar black hole is born from the gravitational collapse of a massive star. The stellar black holes have a mass of some solar masses. A black hole is a region of space whose gravitation is so strong that it will prevent any form of material or radiation from escaping. Cygnus X-1 is an X-ray binary system and the first black hole candidates to be discovered / Bridgeman Images
PIX4590268: Constellation of the Southern Cross - The Southern Cross - The Southern Cross and the Alpha and Beta stars of Centaurus. Crux, the Southern Cross, is the smallest constellation in the sky yet one of the most distinctive, at least to those of us who live in the southern hemisphere. It was once part of Centaurus, where the bright stars Acrux and Mimosa could easly be imagined as the rear hooves of the rearing mythical centaur. However, when Christian sailors began to explore southwards in the 16th century, this memorable asterism took on a new significance. The cross appears on the national flags of several southern hemisphere countries, including Australia, though it can be seen on the southern horizon from the tropic of Cancer, 23.5 degrees north of the equator. Along with the Southern Cross is a very distinctive dark shape known as the Coalsack, much used by southern hemisphere astronomers as an indicator of a dark sky, especially if the sixth magnitude star embedded in it is visible. The long axis of the southern cross points towards the south celestial pole, so the cross itself acts as a very convenient circumpolar clock, compasset and calendar / Bridgeman Images
PIX4592385: Constellation of Ophiuchus - Constellation of Ophiuchus - Constellation of Ophiuchus extracted from the Uranographia of Hevelius. Recolorised image. Map showing the constellation of Ophiuchus with its mythological form from “” Uranographia”” star atlas by Hevelius (1690). Recolored Image / Bridgeman Images
PIX4592866: Winter Sky - Winter Sky - Star sky above the Alps. In the sky, the constellations of the Taurus (right), Orion (center), and the bright star Sirius (lower left). A shooting star crosses the constellation of Taurus. January 3, 2011. Starry sky above english Alps. In the sky, constellations of Taurus (at right), Orion (centre), and bright star Sirius (bottom left). A shooting star is crossing Taurus constellation. January 3rd 2011 / Bridgeman Images
PIX4604377: Rocket Ariane 5 GS - 12/2009 - Ariane 5 GS liftoff - 12/2009 - Decolving the Ariane 5 GS rocket with the military satellite Helios - 2B on board. Flight V193 was launched on 18 December 2009. On 18 December 2009, an Ariane 5 GS launcher lifted off from Europe's Spaceport in English Guiana on a journey to place the French military reconnaissance satellite Helios - 2B into Sun - synchronous polar orbit. Flight V193 was the seventh Ariane 5 launch of 2009 and used the last of the GS variant of the launcher. Liftoff of the 49th Ariane 5 mission took place at 17:26 CET/Paris (16:26 UTC; 13:26 English Guiana). The satellite was accurately injected into its target orbit about 59 minutes later. The payload mass for this launch was 5954 kg; the satellite mass was 4200 kg, with payload adapters and dispensers making up the additional 1754 kg / Bridgeman Images
PIX4589747: Constellations of Cassiopee and Cephee - Cassiopeia and Cepheus with constellation lines - Constellations Cassiopeia and Cepheus are two of the most famous constellations in the Northern skies. The shapes of the constellations were drawn on top and some important objects were highlited / Bridgeman Images
PIX4606584: Mars Exploration Rover - Mars Exploration Rover is a Martian exploration mission composed of two probes housing two identical rovers, Spirit and Opportunity MER - A, the Spirit robot launched on June 10, 2003, landed on January 3, 2004 in the crater Gusev. MER - B, the Opportunity robot launched on July 8, 2003, landed on January 24, 2004 on Meridiani Planum. The sun rises behind one of the Mars Exploration Rovers as it prepares to analyse a rock with its RAT tool. Mars Exploration Rover (MER) is a robotic mission which aims to explore the Martian surface and geology. The mission began with the sending of two twin rovers: MER - A (Spirit), launched on June 10 2003 and landed on January 03 2004 in Gusev crater; MER - B (Opportunity) launched on July 08 2003 and landed on January 24 2004 at Meridiani Planum / Bridgeman Images
PIX4608442: Planetary system around Trappist-1 - Artist's impressions of the TRAPPIST-1 planetary system: Artist's view of extrasolar planets around the red dwarf star TRAPPIST-1. At least seven exoplanets the size of the Earth are orbiting this star 40 light years ago in the constellation Aquarius. All could contain water. This artist's impression shows several of the planets orbiting the ultra-cool red dwarf star TRAPPIST-1. New observations, when combined with very sophisticated analysis, have now yielded good estimates of the densities of all seven of the Earth-sized planets and suggest that they are rich in volatile materials, probably water / Bridgeman Images