Improving our understanding of the human brain, gathering insights into the origin of our universe through the detection of gravitational waves, or optimizing the precision of GPS systems- all are difficult challenges to ...
Optics & Photonics
May 12, 2013
5
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Since the 1950s, more than 100 spacecraft have launched to the moon. Twelve astronauts have walked on its surface; 842 pounds of moon rocks and soil have been returned to Earth for meticulous analysis. And yet, much of the ...
Space Exploration
Mar 8, 2013
0
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Astronomers have measured the spin of a black hole buried in the heart of a galaxy located 56 million light years away, and discovered it was spinning quickly – about as quickly as it could go. That was the big news, based ...
Astronomy
Mar 6, 2013
35
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Voracious absences at the center of galaxies, black holes shape the growth and death of the stars around them through their powerful gravitational pull and explosive ejections of energy.
Astronomy
Feb 21, 2013
21
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A team of scientists has successfully reproduced conditions in one of the most hostile environments in the galaxy, enabling them to find out more about how atoms behave in these extreme settings.
Astronomy
Feb 14, 2013
2
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(Phys.org)—University of Arizona physicist Andrei Lebed has stirred the physics community with an intriguing idea yet to be tested experimentally: The world's most iconic equation, Albert Einstein's E=mc2, may be correct ...
General Physics
Jan 4, 2013
81
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(Phys.org)—Astronomers were puzzled earlier this year when NASA's Hubble Space Telescope spotted an overabundance of dark matter in the heart of the merging galaxy cluster Abell 520. This observation was surprising because ...
Astronomy
Nov 29, 2012
75
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In the event that a giant asteroid is headed toward Earth, you'd better hope that it's blindingly white. A pale asteroid would reflect sunlight—and over time, this bouncing of photons off its surface could create enough ...
Space Exploration
Oct 26, 2012
14
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(Phys.org)—Although quantum theory can explain three of the four forces in nature, scientists currently rely on general relativity to explain the fourth force, gravity. However, no one is quite sure of how gravity works ...
(Phys.org)—The mystery surrounding how an electrically charged solar wind can be unleashed from around the Sun's equator – an area where strong magnetic fields should strap it to the surface – has been solved by an ...
Space Exploration
Oct 10, 2012
12
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