People are saying that The Pillars Of Creation have been destroyed, and will take 400-500 Million light years to reach us. Can someone explain how do we know it when the light hasn’t reached us?
In: 1444
The pillars of creation are 400 – 500 million light years away. This isn’t a time, this is a distance. It takes light 400 – 500 million years to get from there to here.
That means what we’re seeing when we look at the pillars of creation is actually what it looked like 400 – 500 million years ago. Something like that is probably deformed, destroyed, or some other way non-existent anymore in this current moment, but because the light takes so long to reach us, we can still see it existing.
When you look at stuff this far away, it’s like you’re time travelling in the past because of the time it takes light to get from what you’re looking at to your eyes.
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