Exocomets likely common around other stars
Posted: Wed, Jan 9, 2013, 9:27 AM ET (1427 GMT)
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.
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.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
Space Force picks 14 companies for GEO surveillance program
Posted: Sat, Apr 11 10:34 AM ET (1434 GMT) |
|
news links
|
|
Saturday, April 18
U.S. Space Force Accelerates Space-Based MTI Fielding Push
Aviation Week — 10:29 am ET (1429 GMT) Lockheed Martin nabs $105M ground system contract to support next-gen GPS
Breaking Defense — 10:28 am ET (1428 GMT) USSPACECOM highlights ‘Year of Integration’ at the 41st Space Symposium
US Space Command — 10:27 am ET (1427 GMT) Rocket Lab Defeats Investor Lawsuit Over Delayed Neutron Launch
Bloomberg Law — 10:26 am ET (1426 GMT) Rocket Lab Beats Investor Suit Over Launch Timeline For Good
Law360 — 10:25 am ET (1425 GMT) |
