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Exocomets likely common around other stars
Posted: Wed, Jan 9, 2013, 8:27 AM ET (1327 GMT)
Exocomets illustration (UCB) Astronomers this week reported the discovery of several stars that have comets orbiting them, suggesting that cometary systems may be just as common as extrasolar planets. Researchers detected these "exocomets" by observing a telltale absorption line in spectra of six young A-class stars. That absorption line is created when an exocomet plunges into a star and evaporates. Astronomers believe that these stars likely also have planets that perturbed the orbits of the comets into the stars.
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news in brief
Short circuit halts Mars rover operations
Posted: Thu, Mar 5 6:26 AM ET (1126 GMT)

UK narrows list of potential spaceport sites
Posted: Wed, Mar 4 6:26 AM ET (1126 GMT)

Military weather satellite explodes in orbit
Posted: Tue, Mar 3 6:44 AM ET (1144 GMT)

news links
Thursday, March 5
Psychologist: Mars One could change the world
St. Louis Public Radio — 6:07 am ET (1107 GMT)
Meet the St. Louis-area woman ready to take a one-way trip to Mars
St. Louis Public Radio — 6:05 am ET (1105 GMT)
Nation of explorers must return to the final frontier
Virginia Tech — 6:04 am ET (1104 GMT)
Elena Shateni on going to Mars -- and never coming back
Los Angeles Times — 6:03 am ET (1103 GMT)
Private Spaceflight Gets A New Boost From Silicon Valley
Fast Company — 6:01 am ET (1101 GMT)


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