The Hubble Space Telescope just snapped a photo of what may be the farthest galaxy we've ever seen: it's almost 13 billion light-years away.
Since the galaxy is so far away, its light took ages to reach us, so what we see now is a snapshot of how this galaxy looked 13 billion years ago. At that point in time, the galaxy would have been newly formed, so the new observations provide a baby picture.
"We certainly were surprised to find such a bright young galaxy 13 billion years in the past," said astronomer Garth Illingworth of the University of California, Santa Cruz, a member of the research team. "This is the most detailed look to date at an object so far back in time."
If they squint, they'll see that's not a moon! Link