Europe's comet-chasing space probe Rosetta dipped out of orbit Friday with a slow-motion crash onto the icy surface of the alien world it's been following for more than a decade. Its final radio ...

BERLIN, Germany -- Europe's comet-chasing space probe Rosetta performed its final task Friday, dipping out of orbit for a slow-motion crash onto the icy surface of the alien world it's been following ...

The cliffside collapse created about 2,000 tonnes of rubble, 99 percent of which settled at the foot of the precipice. In 2015, Europe's Rosetta spacecraft witnessed -- and photographed -- a big one ...

An obscure but fascinating discovery was announced this week regarding Comet 67P/C-G, the 2.5 mile wide (4 km) island of dusty ice orbiting the Sun under the gaze of the Rosetta spacecraft. Water ice ...

Rosetta’s mission to comet 67P revealed a world far more active than scientists expected. Instruments recorded jets of gas erupting from beneath the surface, hinting at complex internal processes.