
A specific type of planet has proven elusive: a planet orbiting at a considerable distance from its parent star.

A specific type of planet has proven elusive: a planet orbiting at a considerable distance from its parent star.

Stormy weather, iron dump and tiger tourism—here are some headlines we didn’t want you to miss this week.

Did our early solar system contain another large planet?

Astronomers have possibly discovered why Uranus and its moons have a sideways orbit.
WP Cumulus Flash tag cloud by Roy Tanck and Luke Morton requires Flash Player 9 or better.