Someone at NASA has a sense of style. Mapping Fireballs is a great title for an article about how the Earth gets hit by asteroids. It may seem like a rare event, but Earth gets hit by 100 tons of them every day. Every day we are on a ball of rock getting hit by 200,000 pounds of rocks traveling faster than bullets. It is a good thing we have an atmosphere that burns up most of them, but not all. The map also shows how big the booms were. Big.
“Mapping Fireballs” – NASA Earth Observatory
Pretending Not To Panic 