Dozens of new exoplanets discovered
Posted: Tue, Oct 20, 2009, 6:58 AM ET (1058 GMT)
Astronomers announced Monday the discovery of over 30 new extrasolar planets, bringing the total number of such worlds found to date to 400. The discoveries, 32 in total, were made by a state-of-the-art instrument at the European Southern Observatory in Chile, which found the exoplanets by detecting minute, periodic shifts in stellar spectral lines caused by orbiting planets. A number of the discoveries are around stars that are "metal-deficient", setting constraints on the amount of heavy elements needed for planet formation. Astronomers now estimate that at least 40 percent of solar-type stars have low-mass planets.
Astronomers announced Monday the discovery of over 30 new extrasolar planets, bringing the total number of such worlds found to date to 400. The discoveries, 32 in total, were made by a state-of-the-art instrument at the European Southern Observatory in Chile, which found the exoplanets by detecting minute, periodic shifts in stellar spectral lines caused by orbiting planets. A number of the discoveries are around stars that are "metal-deficient", setting constraints on the amount of heavy elements needed for planet formation. Astronomers now estimate that at least 40 percent of solar-type stars have low-mass planets.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
|
|
news links
|
|
Saturday, September 5
Gilat Announces $100 Million Five-Year Convertible Notes at 60% Conversion Premium
Gilat Satellite Networks — 11:15 am ET (1515 GMT) 6U-Class Earth Observation Satellite ONGLAISAT, Co-Developed by ArkEdge Space, Wins Small Satellite Mission of the Year Award –First mission involving a Japanese company and university to receive the award–
ArkEdge Space — 11:15 am ET (1515 GMT) Datacentrex Invests $30 Million in Eagle LNG Partners, a Supplier of Fuel for the U.S. Space Launch Industry
Datacentrex — 11:14 am ET (1514 GMT) HawkEye 360 Confirms Early Lock-up Release for September 2nd; Preliminary Inclusion in Russell 2000
HawkEye 360 — 11:13 am ET (1513 GMT) America’s AI Lead Won’t Win The Next Space Race
Forbes.com — 11:11 am ET (1511 GMT) |
