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Steven Vogt - professor of astronomy and astrophysics at UCSC, and co-discoverer of one of the new planets.

Astronomers discover first Neptune-sized planets outside our solar system

Steven Vogt - professor of astronomy and astrophysics at UCSC, and co-discoverer of one of the new planets.

A team of astronomers has announced the discovery of some of the smallest planets yet detected beyond our solar system. The two newly discovered planets represent a new class of extrasolar planets, and their discovery is a significant advance in the quest for such objects.