Gaia

Astronomers have directly measured the mass of a dead star using an effect known as gravitational microlensing, first predicted by Einstein in his...

The European Space Agency’s (ESA) Gaia mission has released a new treasure trove of data about our home galaxy, including stellar DNA, asymmetric...

The Gaia satellite has spotted an enormous ‘ghost’ galaxy lurking on the outskirts of the Milky Way.

An international team of astronomers has discovered an ancient and dramatic head-on collision between the Milky Way and a smaller object, dubbed ‘the...

A new method of measuring the distances between stars enables astronomers to climb the ‘cosmic ladder’ and understand the processes at work in the...

A space mission to create the largest, most-accurate, three-dimensional map of the Milky Way is celebrating its first completed year of observations...

While scanning the sky to measure the positions and movements of stars in our Galaxy, Gaia has discovered its first stellar explosion in another...

A team of astronomers have created the first standardised set of measurement guidelines for analysing and cataloguing stars.