An international team of astronomers announced today that they have discovered the largest extrasolar planet; it’s 70% larger than Jupiter. Amazingly, this new planet, dubbed TrES-4 is actually less massive than Jupiter. With the large size, and lower mass, the planet has a low density. You might call it fluffy. The discovery of TrES-4 was … Continue reading "Large, Fluffy Planet Darkens a Distant Star"