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No Stupid Questions@lemmy.world · 6 天前

If dark matter doesn't emit, absorb, or reflect light, what happens when light hits it?

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If dark matter doesn't emit, absorb, or reflect light, what happens when light hits it?

Mediocre_Bard@lemmy.world to

No Stupid Questions@lemmy.world · 6 天前

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kluczyczka (she/her)@discuss.tchncs.de
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6 天前
it doesn’t. light hitting e.g. a helium atom is an electromagnetical interaction. if dark matter does only interact gravitationally, it wont get hit by light.

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