this post was submitted on 16 Jun 2025
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Scientists find universe's missing [baryonic] matter while watching fast radio bursts shine through 'cosmic fog' (www.space.com)
submitted 4 days ago by [email protected] to c/[email protected]
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cross-posted from: https://lemmy.world/post/31469771

Scientists find universe's missing matter while watching fast radio bursts shine through 'cosmic fog'

Half of the universe's ordinary matter was missing โ€” until now.

Astronomers have used mysterious but powerful explosions of energy called fast radio bursts (FRBs) to detect the universe's missing "normal" matter for the first time.

This previously missing stuff isn't dark matter, the mysterious substance that accounts for around 85% of the material universe but remains invisible because it doesn't interact with light. Instead, it is ordinary matter made out of atoms (composed of baryons) that does interact with light but has until now just been too dark to see.

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[โ€“] [email protected] 1 points 3 days ago (1 children)

Amazing.

Any ideas what the cause of those FRBs are?

[โ€“] [email protected] 1 points 3 days ago

Apparently the eggheads are stumped on this one.