alan123hk's latest activity
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alan123hk replied to the thread Interstellar Spacecraft Voyager 1.It's hard to say how likely Voyager 1 is to be discovered by extraterrestrial intelligence. This is probably a very subjective guess... -
alan123hk replied to the thread Interstellar Spacecraft Voyager 1.Precisely because the universe is so vast beyond our imagination, it is almost certain that in addition to the Earth, there are many...