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Physics & Astronomy Facts

This actual Hubble image of Quaoar is a sum of sixteen separate exposures made with Hubble
The Kuiper Belt

The Kuiper (pronounced Ki-Per) Belt is often called our solar system's 'final frontier.' This disk-shaped region of icy debris is about 12 to 15 billion kilometers (2.8 billion to 9.3 billion miles) f ...
Series of images over time of the light echo from the star known as V838 Monocerotis or V 838 Mon.
Light Fantastic

On the next hot summer day, imagine what would happen if the Sun suddenly became one million times brighter. Ice cream would quickly melt, sunscreen lotion wouldn't work very well, and that's just the ...
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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