Space agency says Philae completes primary mission

The pioneering lander Philae completed its primary mission of exploring the comet's surface and returned plenty of data before depleted batteries forced it to go silent, the European Space Agency said Saturday.

Obama pushes for world climate pact after China deal

A Sino-US breakthrough on reducing carbon emissions proves a global deal on climate change is achievable, US President Barack Obama said Saturday, as campaigners hailed new momentum in long-stalled talks.

No signals heard from comet lander Saturday

The European Space Agency received no signals from the Philae lander Saturday morning during a scheduled effort to establish communication, the mission chief said.

Philae lander on comet may communicate again

European space scientists are hoping that they succeeded in maneuvering comet lander Philae into the sun and that it will resume communicating Saturday with recharged batteries.