Cornell physicists can now precisely control how particles in viscous liquids swirl, twirl and whirl. Think of coffee and adding cream—and gaining control of the particles in the cream. Understanding this concept could ...
General Physics
Mar 22, 2013
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(Phys.org)—An asteroid that some day might threaten Earth is passing relatively close by on the night of December 11–12, and its gliding path among the stars will be tracked by a team of high-school students at the Clay ...
Space Exploration
Dec 11, 2012
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Vega, a star astronomers have used as a touchstone to measure other stars' brightness for thousands of years, may be more than 200 million years older than previously thought. That's according to new findings from the University ...
Astronomy
Dec 11, 2012
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Even though black holes—by their definition and very nature—are the ultimate hoarders of the Universe, gathering and gobbling up matter and energy to the extent that not even light can escape their gravitational grip, ...
Astronomy
Dec 4, 2012
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(Phys.org) -- Using the planetary radar system at Arecibo Observatory, astronomers have determined that asteroid 2012 LZ1 is twice as large as originally estimated based on its brightness, and large enough to have serious ...
Space Exploration
Jun 21, 2012
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Magnetic instabilities play a crucial role in the emergence of black holes and other cosmic phenomena. At the Helmholtz- Zentrum Dresden-Rossendorf, confirmation of such a magnetic instability - the Tayler instability - was ...
General Physics
Jun 20, 2012
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(Phys.org) -- In a step toward returning NASA's Mars Odyssey orbiter to full service, mission controllers have tested a spare reaction wheel on the spacecraft for potential use with two other reaction wheels in adjusting ...
Space Exploration
Jun 15, 2012
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(PhysOrg.com) -- ESA’s Venus Express spacecraft has discovered that our cloud-covered neighbour spins a little slower than previously measured. Peering through the dense atmosphere in the infrared, the orbiter found ...
Space Exploration
Feb 10, 2012
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Scientists have been puzzled by periodic bursts of radiation, known as the Saturn kilometric radiation (SKR), that occur in the planet's magnetosphere. These emissions occur at a rate that is close to, but not quite the same ...
Space Exploration
Dec 31, 2011
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Planetary nebulae come in a dazzling array of shapes, from spherical shells of gas, to blobby structures barely containing symmetry at all. Controversy has surrounded the cause for this diversity. Could it be magnetic fields, ...
Astronomy
Jun 16, 2011
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