News tagged with ultraviolet rays

X-Ray Emission from Young Stars

(PhysOrg.com) -- The star TW Hydrae is located about 150 light-years from earth in the direction of the constellation of Hydrae, the Water Snake. This star is relatively young -- at about 10 million years ...

Feb 05, 2010 5 / 5 (3) 0 | with audio podcast

Ozone layer depletion leveling off

By merging more than a decade of atmospheric data from European satellites, scientists have compiled a homogeneous long-term ozone record that allows them to monitor total ozone trends on a global scale - ...

Sep 21, 2009 3 / 5 (4) 0