Topic: Mount Lemmon
All Content
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Humongous asteroid could strike Earth in 2040
The 460-foot wide asteroid 2011 AG5 could be on a collision course with our planet. But the odds are very small, say scientists.
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2010 RF12 and its pal show improvements in asteroid detection
2010 RF12 and another small asteroid that passed close to earth Wednesday were detected three days before their fly-by, illustrating the improving capability of asteroid-spotting telescopes.
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Pair of asteroids to buzz past the earth
In an unprecedented event, two asteroids will pass our planet Wednesday at a distance closer than the moon. Neither rock threatens to strike the earth, say astronomers.
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How an amateur beat the pros in spotting Jupiter collision
With dedication and good timing, amateur astronomers have helped track asteroids and search for planets. NASA is enlisting some for a moon observation mission.
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