Jun 22, 2011Using a technique called gravitational microlensing, astronomers have detected a rocky planet that orbits its host star at a distance further out than most other extrasolar planets detected thus far. The discovery highlights how the microlensing technique could help in the hunt for Earth-like planets.
Oct 25, 2010Astronomers are re-thinking the requirements that need to be met for an exoplanet to be considered 'habitable.' A new simulation of the Gliese 581 system is helping astrobiologists refine their search for Earth-like worlds in the Universe. Gleise 581 recently made news because a planet