3 ms·
how long does it take for this signal to reach Earth?
by bra-ket 6y ago
how long does it take for this signal to reach Earth?
- Ancapistani 6y agoProxima Centauri is 4.2 light years away, therefore it takes 4.2 to send a signal from there to here (or vice-versa) Assuming this is an intelligently-created signal, then it’s most likely something that was transmitted from Earth 8.4 years ago.
- deleted 6y ago[deleted]