News tagged with outer atmosphere

A cool discovery about the Sun's next-door twin

(Phys.org)—ESA's Herschel space observatory has detected a cool layer in the atmosphere of Alpha Centauri A, the first time this has been seen in a star beyond our own Sun. The finding is not only important ...

dateFeb 20, 2013 in Astronomy
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Betelgeuse braces for a collision

(Phys.org)—Multiple arcs are revealed around Betelgeuse, the nearest red supergiant star to Earth, in this new image from ESA's Herschel space observatory. The star and its arc-shaped shields could collide ...

dateJan 22, 2013 in Astronomy
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Accretion around a young star

(Phys.org) -- The star TW Hydrae is located about 150 light-years from Earth in the direction of the constellation of Hydrae, the Water Snake. This star is relatively young, about 10 million years old, and ...

dateJul 24, 2012 in Astronomy
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Wave power can drive Sun's intense heat

A new study sheds light on why the Sun's outer atmosphere, or corona, is more than 20 times hotter than its surface. The research, led by the National Center for Atmospheric Research (NCAR), may bring scientists a step closer ...

dateJul 27, 2011 in Space Exploration
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Going to Earth's core for climate insights

(PhysOrg.com) -- The latest evidence of the dominant role humans play in changing Earth's climate comes not from observations of Earth's ocean, atmosphere or land surface, but from deep within its molten core.

dateMar 10, 2011 in Earth Sciences
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