We are about to find out just how generous nature really is. On Tuesday, astronomers operating NASA’s Kepler spacecraft will release a list of about 350 stars newly suspected of harboring planets, including five systems with multiple candidate planets. That data could dramatically swell the inventory of alien worlds, which now stands at 461.

Cornell’s e-print arXiv of scientific papers will evolve from a simple database to a place where “authors, articles, databases and readers talk to each other.”