Saturday, January 26, 2013

Asteroids vs. comets: Expert sizes up perils
[ Sat, 26 Jan 2013 03:17:43 GMT ]

Science editor Alan Boyle's blog: NASA's top expert on near-Earth objects says that new telescope systems are gradually getting a handle on potentially threatening asteroids. But comets? That's a completely different story.Science editor Alan Boyle's blog: NASA's top expert on near-Earth objects says that new telescope systems are gradually getting a handle on potentially threatening asteroids. But comets? That's a completely different story.


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