ATProto Browser

ATProto Browser

Experimental browser for the Atmosphere

Post

But if you say, "What was Earth like 133 years ago, *at the same time* as light left HR 8799?" that "At the same time" part is a trap. You can't really have "at the same time" across interstellar distances. Might seem like semantics, but things like gravitational lensing wouldn't work otherwise.

May 8, 2025, 12:38 PM

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