(Picture: Nasa, ESA, and The Hubble Heritage Team STScI/AURA) The Carina Nebula is a cloud of dust, hydrogen, helium and other gases around 7,500 light years away from Earth. In this picture the oxygen is blue, hydrogen and nitrogen are green and sulphur red.
The blue oasis we call home: Earth is photographed with a high-definition 121megapixel camera - creating the sharpest image of our planet yet Read more: http://www.dailymail.co.uk/sciencetech/article-2142884/Earth-Stunning-picture-Russian-weather-satellite-shows-definitive-image-planet.html#ixzz1uei5jjGT
Nasa marks 50 years of space photography - in pictures
A dying star throws a cosmic tantrum in this combined image from Nasa's Spitzer Space Telescope and the Galaxy Evolution Explorer. The star's dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. This object, called the Helix nebula, lies 650 light years away in the constellation of Aquarius
A 1969 illustration entitled A Blue Globe Hanging in the Sky ¿ Earth as seen from the moon by Charles Bittinger will be up for auction at Christie's sale of 'The National Geographic Collection: The Art of Exploration '