A newfound asteroid that may be the size of three football fields will whiz by Earth on Thursday (Sept. 13), and you can watch the close encounter live online.

Asteroid 2012 QG42 is between 625 feet to 1,400 feet wide (190 to 430 meters) and was first spotted by scientists last month. Researchers say the space rock has no chance of hitting Earth this week when it makes its closest approach on Thursday.

The asteroid will pass by at a safe distance of about 7.5 times the Earth-moon distance. The moon is, on average, about 238,000 miles from Earth.

--Courtesy of Space.com