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Anonymous
Looking into the past 2017-01-31 06:15:17 Post No. 8641532
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Looking into the past 2017-01-31 06:15:17 Post No. 8641532
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Let's make a hypothetical scenario.
Light travels with light speed. If something is bright and one light year away, it'd take one year for the light to travel between the star and the earth.
When we look at the sun, it's about 15 light minutes away. So if you look at it, you'll see the sun as it was 15 minutes ago. If the sun exploded right now, you'd only see it in 15 minutes!
Now let's say, we have a ship and a huge telescope. We travel a couple light years and then stop. Now we look through the telescope, looking directly at the earth.
The earth is, say 10 light years, away. Since light has to travel 10 years to reach us—are we looking at the earth as it was 10 years ago?
What exactly are we seeing then? If we zoom in enough, are we actually gonna see things as they were in 2007? If we traveled enough, would we be able to see 80 years ago, looking at Hitler giving a speech for example?
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>>8641532
I don't know anything about physics, but wouldn't you be looking at a Future Earth since light travels faster than your ship?
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I dunno but in my scenario I decided that we don't travel with any speed, we just teleport ourselves to a certain place which is 10 or 80 light years away from earth.
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>>8641574
If you teleported ten light years away right now and looked in a telescope immediately, you would see ten years ago.
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>>8641587
You think I'd literally see 2007? I could theoretically see myself what I did 10 years ago?
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>>8641593
Yes
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>>8641593
If you had a spaceship that went faster than light you could watch yourself take off
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