Student astronomer finds missing galactic matter

Re:Student astronomer finds missing galactic matter by Gunax on Saturday February 06, 2021 @11:09AM (#26047434)

Most scientists also thought it was crazy at first--surely there must be some simpler explanation than just conjuring up a new type of matter. But at this point, the dark matter theory is by far the most popular.

There are a lot of reasons we know that dark matter is (almost certainly) non-baryonic. For one, we know how much baryonic matter there is (based on models of the big bang, etc.) And while no one has seen dark matter in a laboratory, we have observed it indirectly (eg by gravitational lensing).

[1] https://www.nasa.gov/vision/universe/starsgalaxies/dark_matt...

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Re:Student astronomer finds missing galactic matter by hinkley on Saturday February 06, 2021 @01:16PM (#26048531)

I did a thought experiment once about wormholes, and how gravity would pass through them creating quite a messy curvature of space (potentially dangerously so near a planet or sun).

Don’t we think wormholes would look like gravitational lensing?

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