Galaxies

Our galaxy and its nearest large companion, Andromeda, may be headed for a collision on a cosmic scale. What happens then?

The new image shows the galaxy NGC 1266, a transitional object with a clutch of young stars that likely collided with a smaller galaxy 500 million years ago

Seen just 800 million years after the big bang, an object called LAP1-B is a galactic building block that seems to hold some of the first stars to ever shine

Researchers are perplexed by a galaxy that seems too large and too dusty for its place in cosmic history, less than a half-billion years after the big bang

This galaxy, also known as Messier 104, gets its nickname from its central bulge and outer dust trail, which give it a sombrerolike appearance from our vantage point

The stars in the Small Magellanic Cloud aren’t behaving the way they should. A cataclysmic collision with another nearby galaxy may be the culprit

The sun rode a massive galactic migration wave to the Milky Way’s suburbs

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think bigger

A “disappearing” star in the Andromeda galaxy is the closest and best candidate for a newborn black hole that astronomers have ever seen

You might think galaxies can’t ever find each other in our runaway cosmos, but it turns out gravity can sometimes overcome even the stretching of space itself

Researchers have found what might be a little red dot transitioning into its final state, where x-rays burst through its gas cocoon. Others argue the object is nothing special

Dating to only a billion years after the big bang, JADES-ID1 may be the earliest, most distant galaxy protocluster astronomers have ever seen