Stars and Galaxies

Astronomers using NASA's James Webb Space Telescope have confirmed the faintest galaxy yet seen in the early universe, a curious object that lies 13.3 billion light-years from Earth.

Dark matter, the invisible material that makes up the vast majority of the universe's mass, may collect itself to form atoms, a new simulation shows.

Astronomers have used the youngest objects in the Milky Way to build a new map of the galaxy's spiral arms, and the results are far messier than expected.

Astronomers have discovered the first chemical evidence of pair-instability supernovae from the universe's earliest massive stars in a strange star in the Milky Way’s galactic halo.

Astronomers have created the first model for how debris around exploding stars could emit gravitational waves powerful enough to be detected by instruments on Earth.

The James Webb Space Telescope has produced a stunning image of a distant star-forming barred spiral galaxy as astronomers study star birth outside the Milky Way.

Astronomers using the James Webb Space Telescope have detected the oldest known examples of complex organic molecules in the universe, a new study reports.

A new supernova that burst into the night sky in May 2023 should remain visible in the Pinwheel Galaxy for some time, astronomers say.

Hundreds of lines made from a multitude of gases have been discovered extending outward from the black hole at the center of our galaxy.

One of the brightest stars in the night sky has been getting oddly brighter, prompting speculations that it might soon explode in a supernova. Can we really expect that celestial spectacle?

NASA's Hubble Space Telescope has snapped a stunning image of a jellyfish galaxy, whose cosmic tentacles host massive amounts of star formation.

The two protesters burst from their cocoons of gas and dust in Lupus 3, a vast stellar nursery located about 500 light-years from Earth.

A star in the Pinwheel Galaxy has exploded into a new supernova that was confirmed just last week. Here's how to see it for yourself in the night sky.

The close proximity of supernova 2023ifx and the amount of observations gathered since its discovery may lead to major advances in stellar death forecasting.

Astronomers are snooping on the Milky Way's galactic neighbors to gain insights about the ancient galaxies being viewed by the James Webb Space Telescope.

A star explosion in deep space is visible in amateur telescopes, although folks have had to battle low lighting conditions, haze and the occasional satellite trail to see it in action.

In a distant star system, a sunlike star orbits an invisible object that may be the first example of a 'boson star' made of dark matter, new research suggests.

A newly discovered supernova can be watched as it develops in real-time online and for free. The livestream will begin at 6:30 p.m. EDT (2230 GMT) on Friday, May 26.

During the last few days, astronomers have been pointing their telescopes toward a familiar celestial object in our spring night sky for a look at a rare event: A new supernova.

A young NASA mission spotted strange movements of X-rays in the supernova remnant known as Cassiopeia A, which may include an extremely dense and small star.