The black holes surround the supermassive black hole at the center of the Milky Way.
Scientists think the galaxy is expanding at about 550 yards per second.
The planets face supernovas, gamma-ray bursts and gravity-disrupting stars in the crowded center of the Milky Way.
Infrared images can help scientists peek behind the veil of enormous dusty clouds.
Rosette Nebulae are red, O-type stars are blue...
A new theoretical model of dark matter suggests it contains two distinct varieties of charged particles, which would allow it to form compact objects.
The planets sit in a galaxy 3.8 billion light years away.
The discovery marks the first inactive black hole ever found at the heart of a giant globular star cluster.
It's a lot more hectic in the heart of our galaxy than scientists thought.
How do you take a picture of a giant and invisible object?
The weird clouds could come from another galaxy.
It's about the size of 13 Jupiters smooshed together, which means that for a planet, it's really, really big.
A newly "ancient" galaxy may help us better understand how and why galaxies take on their many beautiful shapes and forms.
Object found hiding in a cloud of molecular gas believed to be an elusive type of black hole.
Scientist traces the trajectories of 300,000 stars and found the ones most likely to brush past us in the future.
Supercomputer simulations reveal we are all made up of a bit of extragalactic matter.
Astronomers discover hypervelocity stars originally came from a dwarf galaxy orbiting the Milky Way.
Scientists' observations could help us understand what could happen to our own galaxy in the future.
The Milky Way being inside a void would help explain discrepancies within the Hubble Constant—the rate at which the universe is expanding.
Fast radio burst 150215 was detected in real-time with the Parkes radio telescope in Australia in 2015.
To get a meaningful answer, we need to collect more Milky way samples.