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First Earth Trojan Asteroid Discovered

The Bad Astronomer writes "Astronomers have found the very first Earth Trojan asteroid, a rock that more-or-less shares Earth's orbit around the Sun. Seen in data by NASA's WISE mission, 2010 TK7 is about 300 meters across and leads the Earth by 60 degrees around the Sun. Trojans have been seen for Jupiter, Neptune, and Mars, but this is the first for our planet."

4 of 173 comments (clear)

  1. Trojans! by Oxford_Comma_Lover · · Score: 4, Funny

    ... the very first Earth Trojan asteroid,

    Curse its sudden but inevitable betrayal.

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  2. Re:Isn't this a ticking time bomb? by iggymanz · · Score: 5, Informative

    No, the Lagrange points are stable garbage dumps for planets to put "small" things of 9% of its mass or less, the stuff stays there. It's one of the ways a planet clears its orbit.

  3. Run Away!!! by SomewhatRandom · · Score: 3, Funny

    Well, now, uh, Launcelot, Galahad and I, wait until nightfall, and then leap out of the asteroid, taking the French, uh, by suprise. Not only by suprise, but totally unarmed! ...*Who* leaps out?

  4. Re:L4 by camperdave · · Score: 3, Informative

    It must be quite the asteroid to have an entire planet in it's L5 Lagrange point.

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