ASTRONOMY:
Shadow and Shine Offer Glimpses of Otherworldly Jupiters
Mark Sincell
Astronomers have assembled their sharpest picture yet of planets around other stars. Early last week, one group of observers said it had twice seen a giant exoplanet cross the face of its parent star and determined the planet's mass, size, and density. Then another group posted a paper on the Web announcing the discovery of starlight reflected from the Jupiter-sized exoplanet orbiting the star Tau Boötis.