A new study carried out by Professor Michael Rampino of New York University suggests that dark matter may have had a part to play in the periodic mass extinction events that are known to have taken place throughout Earth's history. It takes our planet roughly 250 million years to circle the Milky Way, and around every 30 million years the Sun's orbit takes us through what is known as the galactic disk. The galactic disk is where the majority of the mass in our galaxy resides, and alongside it a thin disk of dark matter. .. Continue Reading Research suggests dark matter plays a significant role in our planet's mass extinction cycle
Section: Space
Tags: Comets, Dark Matter, Galaxy, Gravity, New York University, Oort cloud, Orbit, Solar System
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from Gizmag Emerging Technology Magazine http://ift.tt/1FUr2PI
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