View Full Version : Alien Mineral From Comet Dust Found in Earth's Atmosphere

2008-Jun-12, 10:20 PM
Astoundingly, about 40,000 tons of dust particles fall to Earth each year which originates from space "leftovers," mostly from disintegrating comets and asteroid collisions. Scientists are very interested in this dust because of its pristine nature –it is made of the original building blocks of the solar system. Some of that dust also resides [...]

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