NASA's WISE mission discovered asteroid 2010 TK7, an Earth Trojan, in a stable orbit around a Lagrangian point, possibly a future space destination.
I hope you all had a happy Valentine's Day! :) Here are some pictures of cosmic hearts: A heart-shaped crater on Mars captured by the Mars Orbiter Camera onboard the Mars Global Surveyor. A heart-shaped Nebula, called W5, located 6000 light years away in the constellation of Cassiopeia.
Dark asteroids near Earth, hard to spot but potential threats. WISE infrared telescope helps detect them. What's the risk of asteroid impact?