NanoSail-D To Stay in Orbit Longer than Expected

摘要

NASA's prototype solar sail space craft will continue to orbit Earth for a few more months, the U.S. space agency said April 26.NASA's NanoSail-D satellite was originally expected to burn up in Earth's atmosphere 70 to 120 days af-ter unfurling its 100-square-foot solar sail, which happened Jan. 20. But the satellite is descending more slowly than anticipated, meaning it should stay aloft at least until July, NASA of-ficials said.