The Voyager 1 spacecraft launched in 1977 on a mission to Jupiter and Saturn. It kept on going. Today it's billions of miles from Earth, and scientists have been predicting it will soon leave the solar system.
The bus-sized meteor that slammed into Russia in February, causing a massive shock-wave and injuring hundreds of people, sent a plume of dust into the stratosphere that circled the globe in just four days and lingered for months, NASA says.
The Feb. 15 meteor at Chelyabinsk near Russia's southern border with Kazakhstan measured 60 feet across and weighed 12,000 tons. It detonated 15 miles above the city.
There's some sad news from NASA: The space agency says its Kepler space telescope is beyond repair.
The $600 million planet-hunting probe whose mission was to search other solar systems for Earth-like planets has lost its ability to keep its gaze on target.
Two of the four gyroscope-like reaction wheels that keep Kepler pointed in the right direction have broken down and can't be fixed, but NASA is still hoping it can find some less-stressful work for the orbiting observatory.