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 ...

After more than a decade of charting the stars with extraordinary precision, the Gaia spacecraft has completed its mission.

Saturn is below Venus and very low in the predawn sky. In late April it is five degrees above the horizon. You may need ...

The European Space Agency (ESA) has powered down its Gaia spacecraft after more than a decade spent gathering data that are ...

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

The Small Magellanic Cloud, a dwarf galaxy about 200,000 light-years from the solar system, can be seen with the naked eye ...