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.

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

For years, scientists have predicted that in about 3.75 billion years, our Milky Way galaxy would collide with its massive neighbor, the Andromeda galaxy. This cataclysmic event was thought to be a ...

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

NGC 1786’s mixed-age stars suggest globular clusters aren’t one-generation wonders, offering fresh clues to galaxy formation far beyond the Milky Way.

A new galaxy was found with 10,000 more of unseen mass than the Milky Way. Now, scientists are wondering if there are more of ...

Scientists have detected the collision of two massive black holes merging beyond the Milky Way. The two black holes, each ...

The newly discovered space rock may be older than our entire solar system, and you may get the chance to see it ...

The event is the most massive black hole merger ever recorded by gravitational wave detectors and has forced physicists to ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

The sky had turned overcast by the time we reached camp. Heritage Inspirations founder Angelisa Murray hurried us into a spacious welcome tent for cups of cacao—a nod to one of the products, along ...