Asteroid 2011 MD, reached its closest point to Earth just after 1 p.m. EDT, when it crept within 7,500 miles of Earth before whipping away again like a slingshot.
On November 8 and 9, the quarter-mile-wide asteroid 2005 YU55 will zoom past the Earth, coming within about 200,000 miles, a distance closer than our moon.
Apophis asteroid: Russian scientists are warning that a rock the size of two football fields is poised to strike our planet in 2036. But NASA says the odds are just one in a quarter million.
A small object that buzzed our planet this month is likely a spent rocket stage, and not an asteroid, NASA officials said Thursday.
The asteroid Apophis is very unlikely to smack Earth in 2036. That's the good news from a large group of planetary scientists meeting this week in Puerto Rico