The Hubble Space Telescope has sent back a gorgeous new view of one of our nearest galactic neighbors, which is full of ...

Astronomers bid an emotional farewell to Gaia, expressing their gratitude for its more than decade-long mission that gave us ...

We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

The smaller, intermediate mass black hole was likely derived from the Sausage Galaxy, which collided with the Milky Way 10 ...

The once-in-a-lifetime explosion of T Coronae Borealis, also known as the "Blaze Star" is still pending -- but the event will ...

After over a decade of stellar service, ESA’s Gaia spacecraft has been retired – but its legacy is just beginning. From ...

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

The spiral galaxy 2MASX J23453268−0449256 is located nearly 1 billion light-years away from Earth, and measures about three ...

"Could our galaxy one day experience similar high-energy phenomena that will have serious consequences for the survival of ...

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

Fast-moving stars in the Milky Way received a powerful kick from the Large Magellanic Cloud — and a central black hole might ...

Europe's star-mapping Gaia space observatory has entered its retirement orbit, after gathering valuable cosmic data for more ...