Astronomers have discovered that a satellite of the Milky Way has left a "wake" in the dark matter halo that surrounds our galaxy.
The supermassive black hole at the center of the Milky Way released an unusual number of strong flares in 2019. Now, astronomers are trying to figure out why.
A Tibetan cosmic-ray observatory has discovered high-energy particle accelerators within our galaxy.
New maps of the Milky Way suggest the Local Arm that we call home is longer than expected — now upgraded to a major spiral feature (but not quite an arm).
Astronomers are starting to understand why the dwarf galaxies around the Milky Way are aligned along a plane.
In the news this week: Globular clusters have the detailed scoop on our galaxy's past, and a "heartbeat" black hole binary in the Milky Way has gone mysteriously dim.
Thousands of stars that once belonged to an ancient galaxy are inside our own.
Astronomers have released a new, extremely detailed three-dimensional census of our Milky Way galaxy.
New research shows stellar flybys are common in our galaxy’s crowded center. That could have both good and bad (but mostly bad) effects on growing planets.
The 30-degree circular arc is likely a shock front expanding from a star that exploded some 100,000 years ago.