When a probe skimmed past the dwarf planet in July, researchers expected to see a cold, dead world. New results published today show that Pluto is an active place.
The LADEE spacecraft, which began its trip to the moon Friday night in a launch from Virginia’s coast, has run into some mechanical problems, NASA says. Officials say the robotic orbiter remains on track, however, and its problems can be resolved before it reaches the moon next month.
NASA is bringing a retired spacecraft back into service to help search for asteroids that could pose a danger to Earth, the space agency announced on Wednesday.
The planet-hunting career of NASA’s Kepler spacecraft might be near its end. Astronomers said Wednesday that a reaction wheel that keeps the orbiting telescope pointed at tiny, distant patches of sky to look for Earth-like planets has failed.