Recent content by plin092

What I mean is "how far away in current terms are the things you will never reach?". Obviously you can keep moving forever. But eventually, because of the accelerating expansion of the universe, there are targets so far away you will never reach them. If your target is currently 18 billion light...

Thank you for introducing me to the particle event horizon. It essentially answers what I wanted to know. I knew the observable universe was 93 billion light years across, and I knew a signal sent now could never reach the majority of what we see. But I wanted to know just how far something...

We know that the large majority of galaxies we see can never be reached. We know in 100 billion years we will lose sight of any galaxy outside out local group (which will itself merge into one big galaxy). But what is the maximum distance you could theoretically go if you made it your #1...

Hello! I would appreciate it if anyone could help me figure this out. I’ve been struggling to find info on my own but so far nothing’s turned up. I am a little confused on the timeline of the generations of stars. I know that our sun is considered an early Population I star. However, I could...