Earth's Interplanetary Dust Traced to Comets by Rosetta Probe

January 26, 2015 8:27 PM

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Earth's Interplanetary Dust Traced to Comets by Rosetta Probe

The interplanetary dust particles that fall to Earth from outer space apparently come from comets, according to the latest findings from Europe's comet-chasing Rosetta spacecraft. This discovery could shed light on the origins of Earth and the rest of the solar system.

In August, the European Space Agency's Rosetta spacecraft became the first probe ever to orbit a comet; in November, it became the first to land a probe on a comet. Rosetta and its target, Comet 67P/Churyumov–Gerasimenko, are currently about 318 million miles (513 million kilometers) from Earth.

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