In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

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

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 ...

A trio of astronomers from the University of Tokyo and Niigata University have found what they describe as "peculiar embedded ...

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

Gaia was launched on December 19, 2013, and began scanning the stars in July 2014. It mapped over two billion stars, ...

The Andromeda galaxy is our closest galactic neighbour, barring dwarf galaxies that are gravitationally bound to the Milky ...

Hubble's discovery of expanding galaxies confirmed the universe's vastness, laying the foundation for the Big Bang theory and ...

Island universes referred to the idea that there could be enormous stellar systems outside the Milky Way - but astronomers now just call these systems galaxies. In 1920, astronomers Harlow Shapley and ...

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula ... 2.5 million light-years away from the Milky Way. The observations recorded by Hubble yield new ...