When we are looking at the stars, we are actually looking into their past, since those are too far away from us and light from them takes time to reach us. Even it takes 8 minutes for the light from the sun to reach the earth. So when we see the sun, we see its 8 minutes-old past. The light from the nearest star to the Sun takes more than four years to reach us.
Does it mean that our past is also preserved in the universe? Another place in the space, for example, is now receiving light from our earth which was 100 years or 1000 years old compared to the present time!
No comments:
Post a Comment