Astronomers have been aware of cosmic vampires, dead stars that hungrily strip plasma from victim stars, for some time. New ...

Researchers may have found our galaxy's missing companions, further bolstering science's most widely accepted cosmological ...

Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.

A monster exoplanet as big as 10 times the size of Jupiter has emerged from the stellar gas and dust surrounding a young star ...

Scientists predict up to 100 invisible galaxies may orbit the Milky Way, hiding just beyond our current detection limits.

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...

A newly discovered object from deep space may be the oldest comet ever observed—possibly more than 7 billion years old, and ...

Dark matter is one of nature's most confounding mysteries. It keeps particle physicists up at night and cosmologists glued to ...

New simulations suggest that dozens of ultra-faint “ghost” galaxies may be orbiting the Milky Way, hidden from current ...

On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope, located in northern Chile, ...

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.