Hubble, galaxy and bullseye

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...
In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...
Astronomers have identified what could be the largest structure ever observed in the known universe—a vast network of galaxy ...
The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...