Musings of a Gotham City Geek
What is the sound of one blog clapping?
A clone of Earth, or even a rough approximation, has proved a difficult thing for scientists to find. The catalogue of planets orbiting other stars grew to more than 400 entries in October, but the goal that drives much of the research into extrasolar planets, or exoplanets, is the discovery of a habitable world, and that goal remains unmet. Some rough approximations, however, are starting to come into view.
