Fewer Big Asteroids Close In on Earth - podcast episode cover

Fewer Big Asteroids Close In on Earth

60-Second Space
Oct 03, 2011•1 min
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Episode description

The WISE spacecraft's census of near-Earth asteroids lowers the population of the big, bad ones. John Matson reports
Fewer Big Asteroids Close In on Earth | 60-Second Space podcast - Listen or read transcript on Metacast