(June 2, 2014 at 2:02 pm)Cthulhu Dreaming Wrote:(June 2, 2014 at 1:58 pm)Chuck Wrote: Yeah, and latest results seem to suggest mega-earths are fairly common, where as terresterial planets similar in size to earth are rare.
Is that a case of selection bias (whereby higher-mass planets are easier to spot using current detection methods)?
The Kepler space telescope was designed to be able to spot earth sized exo-planets.