Date: 6/28/2011

The Apollo asteroid flew passed us at a distance of 20,000 km over the Atlantic Ocean two summers ago. LINEAR discovered 2011 MD using robotic telescopes in New Mexico, recording object lengths between 10 and 45 meters, while Astronomy Now's Emily Baldwin reported there was no threat as the asteroid would "mostly burn up in a brilliant fireball, possibly scattering a few meteorites." Phew.