this post was submitted on 25 Nov 2023
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236
An extremely high-energy particle is detected coming from an apparently empty region of space (www.theguardian.com)
submitted 1 year ago by [email protected] to c/[email protected]
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An extremely high-energy particle is detected coming from an apparently empty region of space::Amaterasu particle, one of highest-energy cosmic rays ever detected, is coming from an apparently empty region of space

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[โ€“] [email protected] 5 points 1 year ago (1 children)

When they say "local void", do they mean like a cone extending in that direction with nothing behind it or a space with nothing inside it but stuff behind it?

If it's the former, what is going on with that?

If it's the latter, couldn't this have traveled from one of the things behind it?

[โ€“] [email protected] 3 points 1 year ago* (last edited 1 year ago)

This is what our area probably looks like on really grand scale (every dot is a galaxy). The local void is one of the dark areas next to us.