So, after all these years, it turns out that Rod Serling was right!
Trojan asteroid tags along on Earth's orbit
The asteroid in the Earth's orbit around the sun has been hiding from view, mostly overhead during daylight, study finds.
By Amina Khan, Los Angeles Times
July 28, 2011
Turns out the moon's not the Earth's only traveling companion. Space scientists have discovered an asteroid that's been following our fair planet for thousands of years, at least — and there may be many more where it came from, according to a recent study.
If other so-called Trojan asteroids are found, they could turn out to be ideal candidates for a visit from astronauts, something NASA hopes will be possible within the next 15 years.
Most of the asteroids in the solar system populate the belt of rocky debris between Mars and Jupiter. But planets can pull asteroids into their orbits, too. More than 4,000 Trojan asteroids have been discovered around the gas giant Jupiter, along with a few around Neptune and Mars.
But no such asteroid had ever been found near Earth. That led some scientists to believe that our planet lacked an entourage.
But others proposed a different explanation: Perhaps there were Trojan asteroids in Earth's orbit around the sun, but they were simply hidden from view.
Full story: http://www.latimes.com/news/science/la-sci-trojan-asteroid-20110728,0,284121.story
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