An inexplicably hot, fast-growing cluster of galaxies in the early universe has scientists questioning theories of galactic ...

A potential new type of celestial object has all the makings of a normal small galaxy. It’s rich with the same hydrogen gas ...

Using NASA's James Webb Space Telescope, astronomers have spotted two rare kinds of dust in the dwarf galaxy Sextans A, one ...

Astronomers have captured the most detailed look yet at faraway galaxies at the peak of their youth, an active time when the ...

Astronomers discovered an extremely hot galaxy cluster in the region that was far hotter and older than current theories ...

An interstellar object detected last summer has ignited a renewed debate among astronomers after researchers floated the ...

For the first time, astronomers have confirmed the existence of a rogue planet, one that doesn't orbit a star, by measuring ...

A new study in Monthly Notices of the Royal Astronomical Society used advanced computer simulations to test whether major ...

Scientists have theorized that dark matter clumps exist in staggering numbers, far more than the galaxies we see. Only clumps ...

The scorching cloud of gas threaded between clusters of galaxies is five times hotter than current models predict, ...

Using deep imaging from the James Webb Space Telescope, they observed a galaxy bearing a striking resemblance to our ...

Our galaxy’s supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...