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Space & Astronomy

The search for our solar system's lost planet

By T.K. Randall
April 14, 2009 · Comment icon 18 comments

Image Credit: sxc.hu
Two spacecraft launched by NASA in 2006 will soon be in position to look for evidence of the remains of a planet named Theia that some scientists believe colided with the Earth billions of years ago resulting in the formation of our Moon.
The solar system might once have had another planet named Theia, which may have helped create our own planet's moon.Now two spacecraft are heading out to search for leftovers from this rumored sibling, which would have been destroyed when the solar system was still young."


Source: Space.com | Comments (18)




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Comment icon #9 Posted by Legatus Legionis 15 years ago
How did NASA know it was called Theia? TeraLink Was Here! Our planet is called Gaia, maybe they named her Theia cause of that.. IDK
Comment icon #10 Posted by lookingfortruth 15 years ago
Many people think that another planet comonly known as Nibiru or planet x exists. its very interesting if you decide to research it.
Comment icon #11 Posted by Cradle of Fish 15 years ago
Many people think that another planet comonly known as Nibiru or planet x exists. its very interesting if you decide to research it. That's unrelated, Theia was a hypothetical proto-planet that followed the Earth's orbit and collided with it, with the remnants forming the moon.
Comment icon #12 Posted by danielost 15 years ago
That's unrelated, Theia was a hypothetical proto-planet that followed the Earth's orbit and collided with it, with the remnants forming the moon. exactly theia isn't missing we see it almost every night
Comment icon #13 Posted by :PsYKoTiC:BeHAvIoR: 15 years ago
That's unrelated, Theia was a hypothetical proto-planet that followed the Earth's orbit and collided with it, with the remnants forming the moon. Never heard of that one personally. Well, if indeed there was a collision, have they found evidence on Earth itself to believe this is the case? I'd love to read about it.
Comment icon #14 Posted by dr alien 15 years ago
no the belt is a failed planet because of jupiter. jupiter, that son of a b**ch...
Comment icon #15 Posted by danielost 15 years ago
Never heard of that one personally. Well, if indeed there was a collision, have they found evidence on Earth itself to believe this is the case? I'd love to read about it. No when they collided both planets were destroyed. Earth's gravity was able to pull it back into one piece. Most of the rest became the moon. Thats the theory anyways. some of the pieces are in the trojan positions of the moon. I will let mid or one of the others explain that. They can probable do a better job than i could
Comment icon #16 Posted by ShadowSot 15 years ago
My understanding is this occured way back when Earth was still forming, at the time it was still a mostly molten ball, when the hypothetical planet Theia collided with Earth. Actually, Earth and the Moon are the byproduct of the two planets colliding. How did NASA know it was called Theia? TeraLink Was Here! Uh. We uh... Named it. Like... recently. Also, the Earth does have other satellites: http://www.universetoday.com/guide-to-spac...oes-earth-have/ Not that any of them are probably from the collision, seeing as how their orbit is relatively weak, and formed relatively recently.
Comment icon #17 Posted by dr alien 15 years ago
what if there was a ring of rocks orbiting earth, but its too small to see... so we dont know about it...
Comment icon #18 Posted by ShadowSot 15 years ago
what if there was a ring of rocks orbiting earth, but its too small to see... so we dont know about it... Eh, considering the amount of probes we have in orbit around Earth, and the number of probes we've sent out of orbit, we'd have hit it by now, even if it wasn't visible.


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