Brave New Worlds

Terrific article from Physics World about the search for extrasolar planets.

"Now we are poised to move far beyond our own planetary system — if not yet physically, then at least intellectually — as we learn how many other habitable worlds exist in our galaxy. The expectation of most astronomers is that Earth-like planets will be commonplace; in other words, Earth-size planets will be found orbiting at distances from their parent suns that would allow liquid water to exist on or near the planet’s surface. This prediction is not simply a conceit concocted by wild-eyed planet hunters, but is a logical outcome of what we have learned in the last decade about extrasolar planetary systems. All of the evidence points to the inescapable conclusion that rocky, terrestrial planets similar to the Earth should be orbiting unseen around many, if not most, of the myriad of stars that we see when we look up at the night sky."

After looking at this Extrasolar Planet Encyclopaedia "discovery space", chances are we're not alone. :)