The final messages sent to Gaia will continue to be carried out into space as the observatory sleeps, and as data from it ...

After more than a decade of mapping the stars, the European spacecraft was shut down on Thursday. But its legacy lives on.

These particles are so ghostly that trillions of them pass through Earth each day without notice. So, how do we detect them?

A team of astronomers has stumbled upon a humungous spiral galaxy, about five times more massive than our Milky Way galaxy and covering an area two ...