Even for most astronomers, a galaxy is a sizable thing--a throng of hundreds of billions of stars, threaded with gargantuan clouds of gas and dust,
in a region hundreds of thousands of light-years across. But for cosmologists, those who study nature on its very largest scales, a galaxy is merely
This article was originally published with the title Mapping the Universe.
Already a Digital subscriber? Sign-in Now
If your institution has site license access, enter here.



See what we're tweeting about





Comments
Add Comment