Why is there a normal galaxy sitting at the edge of the Universe?

Re:Why is there a normal galaxy sitting at the edge of the U... by skykooler on Wednesday September 09, 2020 @12:41PM (#24422835)

How can we observe things over 40 billion light years away if they've only been around to emit light for 13 billion years?

[ Parent | on HN ]

Re:Why is there a normal galaxy sitting at the edge of the U... by function_seven on Wednesday September 09, 2020 @12:45PM (#24422885)

The universe has been expanding ever since the Big Bang. Things that are very far away are moving away from us at speeds "faster" than light. No, they're not violating the cosmic speed limit. The fabric of spacetime itself is expanding everywhere, and that makes objects at very large distances apart get even further apart faster than a lightspeed traveler could move them.

https://www.space.com/33306-how-does-the-universe-expand-fas...

[ Parent | on HN ]

Re:Why is there a normal galaxy sitting at the edge of the U... by wffurr on Wednesday September 09, 2020 @12:43PM (#24422865)

https://en.m.wikipedia.org/wiki/Observable_universe#Misconce...

[ Parent | on HN ]

Re:Why is there a normal galaxy sitting at the edge of the U... by vkou on Wednesday September 09, 2020 @01:33PM (#24423489)

They were closer to us when they emitted that light. They've since moved further away.

[ Parent | on HN ]