A massive space rock traveling 25,000 miles per hour will get within 1.7 million miles from the Earth tonight. You'll be able to track its path live during a Slooh Space Camera show, starting at 4 p.m. Pacific/7 p.m. Eastern.
The asteroid, called 2012 QG42, will have about the same amount of brightness as the dwarf planet Pluto. Discovered a couple of weeks ago, 2012 QG42 is estimated to be between 625 feet and 1,500 feet in diameter.
The good news: There's no chance of a collision between the asteroid and Earth today. As for the future, that's anyone's guess right now.