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.

Scientists have linked supernovae to the heating of the Milky Way's outer gas layer, revealing a cosmic dance of creation and ...

The universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous—and highly ...

New research confirms the Universe is expanding faster than theoretical models predict, intensifying the Hubble tension.

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

But researchers have used the James Webb Space Telescope, a collaboration of NASA and its European and Canadian space ...

One of the first constellations amateur astronomers come to recognize, the Queen offers observers many worthy sights.

The European Space Agency’s Gaia mission has almost completely depleted the cold gas propellant that kept it spinning and ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

In commemoration of Edwin Hubble's discovery of a Cepheid variable class star, called V1, in the neighboring Andromeda galaxy 100 years ago, astronomers partnered with the American Association of ...