Astronomers at MIT and elsewhere have spotted an extremely bright red spot in the early universe. The object resembles an ...

A galaxy simulation shows that nuclear star clusters and nuclear stellar disks can grow together as a stellar bar funnels gas ...

A giant aging star near the Milky Way’s central black hole is shedding enormous amounts of gas and dust, roughly an Earth’s ...

The sun frequently flings plasma into space, but sightings of such eruptions on other stars are rare. Magnetic fields could explain why.

More than 70% of massive stars are born in close binary systems, where gravitational tugs and mass transfer between companions dramatically alter their evolution. Yet once the interaction ends—whether ...

The body is the size of the entire solar system and glows with a brilliant red light billions of light years from Earth ...

First glimpsed as “little red dots” in deep-space images from the James Webb Space Telescope, these giant, gas-shrouded black holes are full of surprises ...

Astronomers may have discovered a bizarre new type of star with a black hole at its center.

Astronomers using the James Webb Space Telescope have discovered a bizarre object from just a few hundred million years after the Big Bang that looks like an enormous star but shines far too brightly ...

The Helix Nebula is revealing how debris from a dying star gets broken apart and mixed into the gas between stars.

A groundbreaking new theory about the Universe's origins could fundamentally transform our understanding of physics and ...

A thin ribbon of stars around the ultra-diffuse galaxy UGC 9050-Dw1 may be the first globular-cluster stellar stream ...