News tagged with gliese 581

Do missing Jupiters mean massive comet belts?

(Phys.org)—Using ESA's Herschel space observatory, astronomers have discovered vast comet belts surrounding two nearby planetary systems known to host only Earth-to-Neptune-mass worlds. The comet reservoirs ...

Nov 27, 2012
4.8 / 5 (5) 1 | with audio podcast

Five potential habitable exoplanets now

(Phys.org) -- New data suggest the confirmation of the exoplanet Gliese 581g and the best candidate so far of a potential habitable exoplanet. The nearby star Gliese 581 is well known for having four planets ...

Jul 20, 2012
4.7 / 5 (35) 63 | with audio podcast

Could exoplanet be a haven for life?

Scientists said on Monday a rocky world orbiting a nearby star was confirmed as the first planet outside our solar system to meet key requirements for sustaining life.

May 16, 2011
4.5 / 5 (6) 5

Planets in 'habitable zone' may provide answers

The Gliese 581 system has been making headlines recently for the most newly announced planet that may lie in the habitable zone. Hopes were somewhat dashed when we were reminded that the certainty level of ...

Oct 25, 2010
4.6 / 5 (16) 5 | with audio podcast

Doubt cast on existence of habitable alien world

Last month, astronomers announced the discovery of the first potentially habitable extrasolar planet. But this week at an International Astronomical Union meeting, doubts were raised about the existence o ...

Oct 13, 2010
4.6 / 5 (11) 9 | with audio podcast