Today I Learned@lemmy.worldEnglish · 1 month ago

TIL an Event Horizon is a boundary in space time beyond which no signal can ever reach a given observer

en.wikipedia.org

TIL an Event Horizon is a boundary in space time beyond which no signal can ever reach a given observer

en.wikipedia.org

Don_Dickle@lemmy.world to

Today I Learned@lemmy.worldEnglish · 1 month ago

Event horizon - Wikipedia

en.wikipedia.org

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1 month ago
I.e. black holes exist.

Fun fact: time and space basically switch meaning, mathematically, when crossing said boundary.

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