So how well do you know the Milky Way? Let's test your knowledge of our galaxy's size, age, speed and more with the 15 ...

The Gaia mission, launched by the European Space Agency, has completed a decade of groundbreaking astronomical observations, collecting over three trillion data points on two billion stars and ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Conflicting distance measurements have added to the uncertainty. One data source places one object at 6,500 light years away, ...

Where is our solar system in the vast assemblage of celestial objects in this island Universe we call the Milky Way? To answer that question, we can begin with the beautiful configuration of stars we ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

An official statement issued on Wednesday said that this length compares to roughly 10 times the size of the Milky Way’s ...

Scientists found an intriguing world in our galaxy.

James Webb recently peered at an alien world that could harbor alien life. What impact would such a seismic discovery have on ...

We will never get an image of the Milky Way from above, but M81 or Bode's galaxy is a good stand-in – and now is a great time ...

An exoplanet is a planet outside our solar system that usually orbits a star in our galaxy. More than 7,000 have been found ...

A trio of astronomers from the University of Tokyo and Niigata University have found what they describe as "peculiar embedded ...