The National Hurricane Center is tracking three tropical waves Wednesday, June 5, according to the latest tropical outlook.

Those odds may seem pretty good (assuming you're hoping for a miss), but consider this: The International Warning Asteroid Network (IAWN), a global collaboration started in 2013 to monitor and track .

The way the probability of an impact is determined is much like how the National Weather Service determines the chances that a hurricane ... used radar to track near Earth objects at the Arecibo ...