PIX4580551: Circumpolar over the castles of Lastours (11) - Circumpolar over the castles of Lastours - Photographic pose showing the apparent rotation of stars around the polar star. Below, the Cathar castles of Cabaret, left, and right Tower Regine. Long exposure trail of northern stars over the Cathar castles of Cabaret (left) and Tour Regine (right) / Bridgeman Images
PIX4573851: Life forms on the surface of Gliese 581 c - Flying fauna over Gliese 581 c - Artist's view of the exoplanet Gliese 581c housing an alien life form. Gliese 581c, with a radius of 1.5 times that of the Earth, is the first exoplanet gathering the necessary elements to imagine the existence of a possible extra-terrestrial life. From its surface, its star, about 100 times less bright than our Sun, must be large in the sky because of its proximity to the planet. Gliese 581 b, another planet in this system, passes past this star. Flying life forms grace the crimson skies of the potentially earth - like extrasolar planet Gliese 581 v. The red dwarf star Gliese 581 rests on the horizon, presiding over a liquid water sea. Eclipsing the red dwarf is Gliese 581 b, a sister planet in the same system with a mass 17 times that of the Earth. While the existence of all three bodies has been confirmed, it is not known if Gliese 581 c has all the necessary ingredients to support life as we know it / Bridgeman Images
PIX4573941: Surface of an uninhabitable exoplanet - Exoplanet too hot for life. Artwork - Artist's view of the surface of a planet where extreme temperatures make life impossible. There are likely earthlike planets that miss being hospitable to life because they are a little too close to their host sun (s) / Bridgeman Images
PIX4596021: Apollo 11: detail on the Lem probe - Apollo 11: close - up of the Lem's footpad with the probe - Detail of one of the feet of the Lem and the contact probe (partially hidden in the lunar ground). 20/07/1969. This is a close - up of the Lem's north footpad, showing the buried probe / Bridgeman Images
PIX4576691: Moon: Apennine Mountains - Moon: Apenninus Mountains - The Apennine Mountains are a chain of mountains between the Rainy Sea and the Serenite Sea. Some peaks peak at 5000m. Image obtained on September 3, 2003, during the first quarter of the Moon. Montes Apenninus are a mountain chain located between Mare Imbrium (left) and Mare Serenitatis (right). Some of these mountains are 5000 m high. Image taken on September 3, 2003, during the first quarter of the moon / Bridgeman Images
PIX4581272: Star line on the volcano Nevado Sajama - Star trails above Nevado Sajama volcano - Photographic pose on the stars above the volcano Nevado Sajama, the highest peak in Bolivia, reaching an altitude of 6542m. In the foreground, Lake Chungara, Chile, 4650m altitude. Star trails above Nevado Sajama volcano, the highest peak of Bolivia (6542 m). Foreground is Chungara lake, in Chile / Bridgeman Images
PIX4607013: The solar panels of the Rosetta probe being tested. - View of the Rosetta probe in preparation at ESTEC. The Rosetta probe was launched on 2 March 2004 to study the comet Churyumov - Gerasimenko, which it is expected to meet around May 2014. It will put a landing on its surface. / Bridgeman Images
PIX4586993: The Moon, Venus and Jupiter - Mount Wilson Telescope - Crescent Moon, Venus and Jupiter at Mt Wilson observatory - The Moon and Planets Venus (bottom) and Jupiter (right) seen on December 1, 2008. In the foreground, the historic 60 inch telescope of Mount Wilson. Conjunction between the crescent Moon with Earthshine, brilliant Venus, and Jupiter seen over the famous pioneering 60 Inch (first big reflector) telescope atop Mt Wilson near Los Angeles, California, on the first day of December, 2008 / Bridgeman Images