News tagged with ultraviolet light

Video: A golden arch on the sun

Magnetically charged particles formed a nicely symmetrical arch at the edge of the sun as they followed the magnetic field lines of an active region on Aug.4-5, 2015. Before long the arch begins to fade, but a fainter and ...

dateAug 13, 2015 in Space Exploration
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How DNA protects itself from UV light

X-rays from the Linac Coherent Light Source were used to measure the ultrafast response of DNA nucleobases to ultraviolet light. Researchers found that the UV excited state in the nucleobase thymine decays rapidly, harmlessly ...

dateJun 16, 2015 in General Physics
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Hubble catches a stellar exodus in action

Using NASA's Hubble Space Telescope, astronomers have captured for the first time snapshots of fledgling white dwarf stars beginning their slow-paced, 40-million-year migration from the crowded center of an ancient star cluster ...

dateMay 14, 2015 in Astronomy
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