News tagged with ultraviolet radiation

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Solar wind tans young asteroids

A new study published in Nature this week reveals that asteroid surfaces age and redden much faster than previously thought -- in less than a million years, the blink of an eye for an asteroid. This study ...

Apr 22, 2009
4 / 5 (4) 1

Into the eye of the helix

(PhysOrg.com) -- The Helix Nebula, NGC 7293, lies about 700 light-years away in the constellation of Aquarius (the Water Bearer). It is one of the closest and most spectacular examples of a planetary nebula.

Feb 25, 2009
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Team develops new metamaterial device

An engineered metamaterial proved it can function as a state-of-the-art device in the complex terahertz range of the electromagnetic spectrum, setting a standard of performance for modulating tiny waves of radiation, according ...

Feb 24, 2009
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New stars from old gas surprise astronomers

(PhysOrg.com) -- Evidence of star birth within a cloud of primordial gas has given astronomers a glimpse of a previously unknown mode of galaxy formation. The cloud, known as the Leo Ring, appears to lack ...

Feb 18, 2009
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