Mildred Lybeck
An explosion over California that rattled homes across at least two
states on Sunday, April 22nd, has been analyzed by NASA's Meteoroid
Environment Office: It was a natural meteoroid the size of a mini-van.
Analysts say the space rock exploded in the atmosphere with an energy
equal to nearly 4 kilotons of TNT and might have sprayed the Sierra
Nevada mountains with meteorites.