Scientists pin down causes of dust eruptions

By simple light and heat mechanisms, dust particles seem to defy gravity and leap up into the air. The effect, which once played a role in the formation of the Earth and asteroids, could also have applications in dust removal and even propel small probes on Mars.

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<p><a href="http://www.physorg.com/news64572780.html">Scientists pin down causes of dust eruptions</a></p> <p>By simple light and heat mechanisms, dust particles seem to defy gravity and leap up into the air. The effect, which once played a role in the formation of the Earth and asteroids, could also have applications in dust removal and even propel small probes on Mars.</p>