(Phys.org)—In the galactic scheme of things, the Sun is a remarkably constant star. While some stars exhibit dramatic pulsations, wildly yo-yoing in size and brightness, and sometimes even exploding, the luminosity of ...
Space Exploration
Jan 11, 2013
122
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(Phys.org)—Hydrogen gas that is created using solar energy to split water into hydrogen and oxygen has the potential to be a cost-effective fuel source if the efficiency of the catalysts used in the water-splitting process ...
Materials Science
Oct 4, 2012
0
0
(Phys.org)—Northern night skies have recently been alive with light. Those shimmering curtains get their start about 93 million miles away, on the sun.
Space Exploration
Oct 2, 2012
14
1
(PhysOrg.com) -- Recent research shows that the space age has coincided with a period of unusually high solar activity, called a grand maximum. Isotopes in ice sheets and tree rings tell us that this grand solar maximum is ...
Space Exploration
Apr 2, 2012
6
0
New solar cells could increase the maximum efficiency of solar panels by over 25%, according to scientists from the University of Cambridge.
Nanophysics
Feb 8, 2012
14
0
Viewed from the technological perspective of modern humans, the sun is a seething cauldron of disruptive influences that can wreak havoc on communication systems, air travel, power grids and satellites – not to mention ...
Space Exploration
Aug 18, 2011
3
0
(PhysOrg.com) -- Radiation risks to airplanes and spacecraft are likely to increase when the Sun moves from its present grand solar maximum to lower levels of activity, says research from the University of Reading.
Earth Sciences
Aug 16, 2011
2
0
Every 11 years, the sun undergoes a furious upheaval. Dark sunspots burst forth from beneath the sun's surface. Explosions as powerful as a billion atomic bombs spark intense flares of high-energy radiation. Clouds of gas ...
Space Exploration
Oct 28, 2009
5
0
(PhysOrg.com) -- An international panel of experts led by NOAA and sponsored by NASA has released a new prediction for the next solar cycle. Solar Cycle 24 will peak, they say, in May 2013 with a below-average number of sunspots.
Space Exploration
Jun 1, 2009
16
0
The concept of delaying global warming by adding particles into the upper atmosphere to cool the climate could unintentionally reduce peak electricity generated by large solar power plants by as much as one-fifth, according ...
Environment
Mar 11, 2009
27
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