Doubts raised about "habitable" exoplanet
Posted: Thu, Oct 14, 2010, 8:09 AM ET (1209 GMT)
An extrasolar planet with a size and orbit consistent with requirements to support life may not exist at all, astronomers said this week. Astronomers announced the discovery of the planet, Gliese 581g, late last month, with a mass as little as three times that of the Earth and an orbit that could permit the presence of liquid water. However, European astronomers said this week that they could not confirm the presence of the star in their own observations, raising doubts that the planet exists. Astronomers involved in the discovery, though, said they remain confident that Gliese 581g exists based on the combination of observations by observatories in Chile and Hawaii.
An extrasolar planet with a size and orbit consistent with requirements to support life may not exist at all, astronomers said this week. Astronomers announced the discovery of the planet, Gliese 581g, late last month, with a mass as little as three times that of the Earth and an orbit that could permit the presence of liquid water. However, European astronomers said this week that they could not confirm the presence of the star in their own observations, raising doubts that the planet exists. Astronomers involved in the discovery, though, said they remain confident that Gliese 581g exists based on the combination of observations by observatories in Chile and Hawaii.| <<previous article | next article>> |
|
news in brief
|
|
SpaceX sets Nov. 18 launch date for sixth Starship test flight
Posted: Sat, Nov 9 9:57 AM ET (1457 GMT) |
|
news links
|
|
Wednesday, November 20
Sierra Space Recognized as the Only Space Company in Fast Company’s Annual List of the Next Big Things in Tech
Business Wire — 1:46 am ET (0646 GMT) Building Colorado's economic case to keep Space Command begins
Denver Gazette — 1:46 am ET (0646 GMT) Air Force to change name to protect national space interests
The Nation (Thailand) — 1:45 am ET (0645 GMT) SpaceX, Blue Origin HLS Manifests To Get Cargo Missions
Aviation Week — 1:44 am ET (0644 GMT) Trump attends SpaceX Starship launch in Texas with CEO Elon Musk
CNBC — 1:43 am ET (0643 GMT) |
