Astronomers have wondered for centuries about the possibility of Earth-like planets in the neighboring Alpha Centauri star system, but only recently did their ongoing search bear fruit. European astronomers have discovered a planet with about the mass of Earth orbiting a star in Alpha Centauri. Observations made over more than four years have revealed “a tiny, but real, signal from a planet orbiting Alpha Centauri B every 3.2 days,” explained researcher Xavier Dumusque. “It’s an extraordinary discovery and it has pushed our technique to the limit!”
Scorched 'Earth' Spotted in Star System Next Door
Posted by: Katherine Noyes October 26, 2012 05:00 AMAstronomers have wondered for centuries about the possibility of Earth-like planets in the neighboring Alpha Centauri star system, but only recently did their ongoing search bear fruit. European astronomers have discovered a planet with about the mass of Earth orbiting a star in Alpha Centauri. Observations made over more than four years have revealed “a tiny, but real, signal from a planet orbiting Alpha Centauri B every 3.2 days,” explained researcher Xavier Dumusque. “It’s an extraordinary discovery and it has pushed our technique to the limit!”