title: PLANETARY SCIENCE: Newfound Worlds Hint at Hard-Knock Life.
abstract: Last week at the International Astronomical Union 24th General Assembly, astronomers announced nine newly discovered planets orbiting other stars. The roster of extrasolar planets, now nearing 50, suggests that stars are fecund breeding grounds for worlds but that young planets must battle hordes of rivals for a handful of stable orbits.
authors.forename: M
authors.initials: M
authors.lastname: Sincell