The near-Earth asteroid 4179 Toutatis, which is about 3 miles wide, will zoom within 4.3 million miles of Earth during its closest approach early Wednesday morning, Dec. 12.

Slooh will webcast Toutatis views from a scope in the Canary Islands off the west coast of Africa beginning at 3 p.m. EST (2000 GMT) Dec. 11. Another show will follow at 10 p.m. EST tonight (0300 GMT Wednesday), with footage from an instrument in Arizona. You can watch them at Slooh's website: http://www.slooh.com.

3-mile-wide asteroid to buzz planet Earth tonight