The Gaia mission of the European Space Agency (ESA) has officially ceased its scientific operations after 12 years of service ...

Ultra-faint dwarf galaxies, cosmic 'ghost towns,' offer new insights into the early universe and star formation.

Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

We can judge the value of any scientific endeavour based on how much of our knowledge it overturns or transforms.