Astronomy Photographer of the Year 2012 - Winner. The Whirlpool Galaxy by Martin Pugh. or the Whirlpool is the archetypal spiral galaxy and for centuries astronomers have studied it in order to understand how galaxies form and evolve.
Phobos orbits just 3 miles above Mars. It should crash in approx 1 million years. ESA’s Mars Express spacecraft captured this photo of Phobos – the larger of Mars two moons – orbiting in front of its planet.
This image from Voyager 2 combines images taken in ultraviolet, violet, and green filters to bring out features in Saturn’s atmosphere. Changes in the atmosphere from Voyager pass a year earlier suggested seasonal variations taking place on the planet.