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NAVIGATION

NASA: Is Approaching Space Object Artificial?
NASA Image
Published: May 29, 2010

NASA authorities report that an unknown object approaching the Earth from deep space is almost certainly artificial in origin rather than being an asteroid. Object 2010 KQ was detected by the Catalina Sky Survey in Arizona earlier this month, and subsequently tracked by NASA's asteroid-watching service, the Near-Earth Object Program headquartered at the Jet Propulsion Laboratory in California.

Observations by astronomer S J Bus, using the NASA-sponsored Infrared Telescope Facility in Mauna Kea, Hawaii, indicate that 2010 KQ's spectral characteristics do not match any of the known asteroid types, and the object's absolute magnitude (28.9) suggests it is only a few meters in size.

The mysterious artificial object has apparently made a close pass by the Earth, coming in almost to the distance of the Moon's orbit, and is now headed away again into the interplanetary void.

The object has used no propulsion during the time NASA has had it under observation. However the spacewatch experts believe that it must have moved under its own power at some point, given its position and velocity.

"The orbit of this object is very similar to that of the Earth, and one would not expect a object to remain in this type of orbit for very long," said Paul Chodas, at JPL.

The experts believe that the object must be a spacecraft, or part of one - likely to be a booster stage from an interplanetary mission of the past, now drifting back in to Earth and out again. The next visit will probably be 2036, at which time there's a small chance that 2010 KQ will crash into the atmosphere and burn up.

The NASA graphic above shows the trajectory of the near-Earth object known as 2010 KQ, which the space agency said is likely a spent rocket stage that escaped the Earth-moon system years ago, and not an asteroid.

Casey Kazan via The Register.

Image Credit: P. Chodas/NASA/JPL

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