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

ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

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

Rare ultra-faint dwarf galaxies beyond the influence of other galaxies show evidence that star formation was stifled long ago ...

This stunning image of NGC 6951 is captured by NASA's Hubble Telescope. It is a barred spiral galaxy located in the constellation Cepheus. It is located at a distance of about 75 million light-years ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

Astronomers discovered ultra-faint dwarf galaxies, frozen for 13 billion years, offering rare insights into early cosmic ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

Leo P, a tiny galaxy, stopped making stars after the universe’s reionization. Unlike most galaxies, it restarted billions of ...

Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they were independent galaxies, extremely large and distant. At the time ...