An analysis of star movements from the Gaia spacecraft reveals that the Small Magellanic Cloud — a satellite galaxy bound to ...

On Thursday 27 March, the European Space Agency (ESA) sent its last messages to the Gaia Spacecraft. They told Gaia to shut down its communication systems and central computer and said goodbye to this ...

The universe doesn't come with an instruction manual—but if it did, University of Missouri Assistant Professor Charles ...

In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...