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Dark Matter and the Dinosaur Extinction

bsh1
Posts: 28,720
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11/14/2015 11:05:28 PM
Posted: 1 year ago
I recently read this, and thought it would be an interesting topic for discussion:

"A team of astronomers made a rough estimate of this oscillation rate near the turn of this century, calculating that our solar system passes through the plane of the Milky Way about once every 32 million years, which means if there's a dark disc, we pass through that at the same rate. Interestingly, there's evidence to suggest that mass extinctions in Earth's past happened within this time frame, or about once every 25 to 35 million years." [http://finance.yahoo.com...]

The whole article is worth reading, and it's fairly short. It essentially argues that dark matter is correlated with mass extinctions on Earth.

Is it possible that dark matter is linked with animal extinctions on Earth? If so, what else might this tell us? How does it effect or interplay with other theories of the extinctions? Other thoughts or reactions?
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dee-em
Posts: 7,984
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11/15/2015 2:52:27 AM
Posted: 1 year ago
At 11/14/2015 11:05:28 PM, bsh1 wrote:
I recently read this, and thought it would be an interesting topic for discussion:

"A team of astronomers made a rough estimate of this oscillation rate near the turn of this century, calculating that our solar system passes through the plane of the Milky Way about once every 32 million years, which means if there's a dark disc, we pass through that at the same rate. Interestingly, there's evidence to suggest that mass extinctions in Earth's past happened within this time frame, or about once every 25 to 35 million years." [http://finance.yahoo.com...]

The whole article is worth reading, and it's fairly short. It essentially argues that dark matter is correlated with mass extinctions on Earth.

Is it possible that dark matter is linked with animal extinctions on Earth? If so, what else might this tell us? How does it effect or interplay with other theories of the extinctions? Other thoughts or reactions?

She's drawing a long bow. Firstly, she has no evidence for a dark matter disc. It's pure speculation at this stage. Secondly, despite her saying that there is a 25-35My cycle of mass extinctions, I don't see it:

http://www.skepticalscience.com...
Fatihah: It's like your mother making spaghetti and after you taste it and don't like it, you say "well my mom must not exist". Not because their is no logical evidence but because she doesn't do what you want.