/sci/ - Science & Math

[Anonymous No.6549578]

Hey guys not very /sci/ or smart but I had a thought.
If the light you see from stars depending where the star is in the universe is old light as light takes time to travel.
Could you travel so far away from the universe that you could see old light planets that don't exist anymore?
If a planet explodes and from your position the light fades away could you theoretically move away from that position and the light would re-appear?

[Anonymous No.6549588]

Yes, the principle idea (catching the light from an object which you see being destroyed) is right, but also notice that two problems make this practically infeasible:
- You can't go fast as light in vacuum, so in space, the chances that you catch the light is practically zero.
- Light diffuses and given that you practically only can catch light on a relatively small surface, likely you will not be able to reconstruct a nice image from the light you get.

[Anonymous No.6549599]

>>6549588
thanks for a response, i love getting an answer to questions have a good day man!

[Anonymous No.6549607]

>>6549578
Youd have to move faster than light, which is a bit of a no-no for science right now