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So when we think we're looking at Andromeda today, we're actually seeing Andromeda as it happened 2.5 million years ago. That means someone/something? in Androm
by davidoduk 24d ago
So when we think we're looking at Andromeda today, we're actually seeing Andromeda as it happened 2.5 million years ago. That means someone/something? in Andromeda today, with the ability to see Earth clearly, would see some of our ancestors, like Homo habilis.
I've always wondered, if we end up being able to travel faster than light, we'd technically be able to look into the past depending on how far we go. 1000 light years away and you can see your ancestors on earth.
- yellowapple 24d agoA good enough lens would make it straightforward to solve murder mysteries, provided the murder happened outside on a sunny day.
- fwip 24d agoIn some sense yes, but I'm not sure there's enough photons coming from Earth 1000 light years away to see anything, even with a fantastically sensitive telescope. It would be very cool, though.
- deleted 23d ago[deleted]