In this space wallpaper, this colour-composite image of the Helix Nebula (NGC 7293) was created from images obtained using the the Wide Field Imager (WFI), an astronomical camera attached to the ...
Roughly 5,000 light-years from Earth, a dying star is producing temperatures colder than the void of deep space itself. The Boomerang Nebula, a pre-planetary nebula in the constellation Centaurus, has ...
An onionskin-like structure of concentric dust shells surround a central, aging star as seen in this cool space wallpaper. Twin beams of light radiate from the star and illuminate the usually ...