50-meter wide asteroid is about to squeak by the Earth Feb. 16th

A close encounter of the rocky kind is set for Feb. 16, when an asteroid the size of an office building will speed past the Earth faster than a bullet and closer than some communications and GPS satellites.

It will be the nearest recorded brush with a space rock so large, NASA scientists said Thursday.

The good news is that there is no chance of an impact. At its closest, asteroid 2012 DA14 will pass 27,700 km above Earth.

The bad news is that a million other potentially dangerous — and unknown — city-killing space rocks are out there, and one of them could be on a collision course with Earth. Critics say NASA and other space agencies are not doing enough to scan for these threats.

Read the rest of the story: ‘Warning shot’: 50-meter asteroid is about to buzz Earth.