spacetoday.net: space news from around the webin association with SpaceNews


Red dwarf stars may host billions of habitable planets
Posted: Fri, Mar 30, 2012, 7:18 AM ET (1118 GMT)
Gliese 667Cc illustration (ESO) Astronomers studying a sampling of red dwarf stars have concluded that these stars may collectively have billions of rocky planets in their habitable zones. European astronomers analyzed over 100 M dwarf stars using an advanced spectrograph at the European Southern Observatory. They found nine super-Earths, with masses one to ten times that of the Earth, orbiting these stars; two of the planets had orbits within the stars' habitable zones, where liquid water could exist on planetary surfaces. This frequency led astronomers to conclude that there are about 100 super-Earths in the habitable zones of red dwarf stars within 10 parsecs of Earth. Extended galaxy-wide, astronomers argued that there could be tens of billions of such planets in the Milky Way.
<<previous article   next article>>
news in brief
China launches two navigation satellites
Posted: Sun, Jan 14 5:44 PM ET (2244 GMT)

Arianespace plans a record number of launches in 2018
Posted: Sun, Jan 14 5:43 PM ET (2243 GMT)

Orbital ATK wins Galaxy 30 order
Posted: Sun, Jan 14 5:42 PM ET (2242 GMT)

news links
Saturday, January 20
The new space race
The Economist — 9:47 am ET (1447 GMT)
No launch for Rocket Lab today
Hawke's Bay (NZ) Today — 9:44 am ET (1444 GMT)
Rocket Lab forced to abort launch again
NZCity — 9:43 am ET (1443 GMT)
Rocket Lab second test called off for today
Radio New Zealand — 9:43 am ET (1443 GMT)


about spacetoday.net   ·   info@spacetoday.net   ·   mailing list