(Phys.org) —The Sun glows with a surface temperature of about 5500 degrees Celsius. Meanwhile its hot outer layer (the corona) has a temperature of over a million degrees, and ejects a wind of charged particles at a rate ...
Space Exploration
Apr 3, 2013
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The six science instruments that comprise the Particles and Fields Package that will characterize the solar wind and ionosphere of Mars have been integrated aboard NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. ...
Space Exploration
Mar 14, 2013
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(Phys.org)—Many areas of scientific research—Earth's weather, ocean currents, the outpouring of magnetic energy from the sun—require mapping out the large scale features of a complex system and its intricate details ...
General Physics
Feb 21, 2013
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(Phys.org)—During a chance encounter with what appears to be an unusually strong blast of solar wind at Saturn, NASA's Cassini spacecraft detected particles being accelerated to ultra-high energies. This is similar to the ...
Space Exploration
Feb 20, 2013
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(Phys.org)—The vast edges of our solar system—the boundary at the edge of our heliosphere where material streaming out from the sun interacts with the galactic material—is essentially invisible. It emits no light and ...
Space Exploration
Feb 5, 2013
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(Phys.org)—The sun ejects a continuous flow of electrically charged particles and magnetic fields in the form of the solar wind—and this wind is hotter than it should be. A new study of data obtained by European Space ...
Space Exploration
Jan 8, 2013
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At 18.5 billion kilometres from Earth, the Voyager 1 space probe is the most distant human-made object ever to leave our planet.
Space Exploration
Dec 14, 2012
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(Phys.org)—Overnight on October 4-5, 2012, a mass of energetic particles from the atmosphere of the Sun were flung out into space, a phenomenon known as a coronal mass ejection. Three days later, the storm from the Sun ...
Space Exploration
Nov 6, 2012
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As they near the outer reaches of the solar system, for the past several years the two Voyager spacecraft have been sending back observations that challenge scientists' views of the physics at the edge of the heliosphere, ...
Space Exploration
Oct 29, 2012
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(Phys.org)—Back in the 1980s, the arrival of asteroid 2201 Oljato inside the orbit of Venus heralded a flurry of magnetic activity. Now, results from ESA's Venus Express spacecraft suggest that Oljato has lost its magnetic ...
Space Exploration
Sep 25, 2012
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