In experiments at the Department of Energy's SLAC National Accelerator Laboratory, scientists were able to see the first step of a process that protects a DNA building block called thymine from sun damage: When it's hit with ...
General Physics
Jun 23, 2017
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A lone source shines out brightly from the dark expanse of deep space, glowing softly against a picturesque backdrop of distant stars and colorful galaxies.
Astronomy
Sep 19, 2016
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Ludwig Maximilian University of Munich researchers have discovered a further function of the base-pairing that holds the two strands of the DNA double helix together: it plays a crucial role in protecting the DNA from the ...
Biochemistry
Sep 19, 2014
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The molecular building blocks that make up DNA absorb ultraviolet light so strongly that sunlight should deactivate them – yet it does not. Now scientists have made detailed observations of a "relaxation response" that ...
General Physics
Jun 23, 2014
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Cosmic impacts are known to trigger mass extinctions on Earth. However, a new study adds to evidence that asteroid and cometary bombardment can also shelter life by generating pores in rocks that shelter microbes from damaging ...
Space Exploration
Jun 19, 2014
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According to the theory, small clusters of molecules in the atmosphere have difficulty growing large enough to act as "cloud condensation nuclei" on which water droplets can gather to make our familiar low-altitude clouds. ...
Astronomy
Sep 4, 2013
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To understand how solar cells heal themselves, look no further than the nearest tree leaf or the back of your hand.
Nanomaterials
Aug 7, 2013
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The National Aeronautics and Space Administration has awarded $4.4 million to a collaboration of scientists at five U.S. universities and NASA's Marshall Space Flight Center to help build a telescope for deployment on the ...
Astronomy
Mar 8, 2013
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A blazar is a galaxy with an intensely bright central nucleus containing a supermassive black hole, much like a quasar. The difference is that a blazar can emit light with extremely high energy gamma rays that are sometimes ...
Astronomy
Oct 29, 2012
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(PhysOrg.com) -- Many advanced laser technologies, such as laser spectroscopy, that use precise wavelengths of infrared, visible or ultraviolet laser light could benefit from using X-ray light as well. But to reach its full ...
General Physics
Feb 1, 2012
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