SPACESPACE. NASA is tracking a large near-Earth asteroid as it passes by the Earth-Moon system on May 31st. Amateur astronomers in the northern hemisphere may

VETENSKAPIn this artist's conception an Orion exploration vehicle approaches a near-Earth asteroid. MSNBC. NASA's vision focuses on a near-Earth asteroid, sending out astronauts to bring

VETENSKAPhttp://www.youtube.com/embed/GwidzVHvbGI Den 15 februari 2013 kommer en asteroid, vid namn 2012 DA14, som är några gånger större än en klassisk rymdfärja att passera mellan "lower