A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Giant deep space alien spiral galaxy concept. Loop of high angle revolving galactic stellar milky way supercluster created without third-party elements depicting celestial eternity of the universe.

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

We can judge the value of any scientific endeavour based on how much of our knowledge it overturns or transforms.

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

Somewhere in between, humans realized the universe is much larger than our Milky Way — that the spiral nebulas visible through telescopes were, in fact, other galaxies in their own right.

The intrepid mapping mission has collected more than three trillion observations that'll change the way we see our neck of ...

The Hubble Space Telescope completes a high-resolution portrait of our galaxy's gorgeous neighbor, which will help scientists better understand our Milky Way.