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An extremely high-energy particle is detected coming from an apparently empty region of space (www.theguardian.com)

submitted 1 year ago by L4s@lemmy.world to c/technology@lemmy.world

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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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[-] luthis@lemmy.nz 6 points 1 year ago

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

If you look at the universe structure, it's not entirely implausible to have some straight lines that don't intersect any bodies of mass, depending on how far back in time you're looking.

https://duckduckgo.com/?t=ffab&q=universe+structure&ia=web

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

Only if that thing is/was ahead of the lightspeed/space expansion event horizon.

this post was submitted on 25 Nov 2023

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