Cliff on comet blocks sunlight from lander’s solar panels

Associated Press

BERLIN

A shadow was cast — literally — across Europe’s historic mission to land on and explore a comet. Scientists said Thursday the landing craft not only bounced twice, it also came to rest next to a cliff that’s blocking sunlight from its solar panels.

The good news is that the lander Philae is stable and in good health: Its scientific instruments already have begun gathering reams of data to send back to Earth, including the first pictures taken from the surface of a comet.

The bad news is that its useful lifetime may now be much shorter. With just a day or two left before the lander’s primary battery is exhausted, scientists were considering what acrobatic maneuvers to risk in order to get the solar panels out of the shadows so they can keep Philae going for a few more months.