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Image of the Keck observatory with a laser shining. Image of the planet Neptune without and with the adaptive optics correction.
Laser Guide Stars

Did you ever wonder why we have to have the Hubble Space Telescope so high up in the Earth's orbit? Why not just make a bigger and better telescope on the surface? ...
Images from the EIT (Extreme-ultraviolet Imaging Telescope) instrument on the SOHO spacecraft.
Ultraviolet Light

Ultraviolet light is a form of radiation which is not visible to the human eye. It's in an invisible part of the 'electromagnetic spectrum'. Radiated energy, or radiation, is given off by many objects ...
A composite Chandra X-ray (blue) and Palomar infrared (red and green) image of the supernova remnant W49B.
New Evidence Points to a Gamma-Ray Burst... In Our Own Backyard

Only 35,000 light years away lies W49B, the supernova remnant left over from the cataclysmic burst. New evidence pointing to a gamma ray burst origin for this remnant was discovered by X-ray data from ...

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