A Dartmouth astrophysicist is part of a team that’s been looking billions of years into the universe’s past – and they’ve found some clues that may explain why galaxies form the way they do . Ryan Hickox is an assistant professor of physics and astronomy. The findings of his team were published in the journal Nature . Ryan Hickox joined All Things Considered with more on the findings. Five billion light years away. That's almost half of all time in the universe. You're looking at what was at a