Dangers Loom for 36-Year-Old ISEE-3 Space Probe

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On April 7, 1986, NASA scientist Bob Farquhar sent final instructions to the International Comet Explorer (ICE), a half-ton probe that had made its way 54 million miles from Earth. It had passed through the tail of Halley's Comet only a few days before, and now the mission's flight director told the satellite to go on a long journey. ICE would fall into an Earth-like orbit around the sun, tour empty space, and eventually catch up to Earth in 2014.

Launched in 1978 as a solar observatory, the probe had already spent years in space, hopping from one mission to another. Farquhar imagined future astronauts picking up the satellite as it re-approached its home world. NASA even preemptively donated the craft to the Smithsonian. Read more...

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from MashableThe Atlantic