The low carbon levels are particularly interesting, as previously discovered “pristine” or metal-poor stars generally ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy ...

A giant supermassive black hole (SMBH) that consumes the mass of the Sun a day has been found to be about one-fifteenth of ...

The known universe is full of shockingly huge things. Here are the largest planets, stars, galaxies, and structures we've observed in the universe so far.

Our own planet represents a tiny fraction of the peculiar phenomena that can be found lurking throughout the cosmos, and every day astronomers turn up new surprises. In this gallery, we take a look at ...

The James Webb Space Telescope, launched in 2022, has discovered something that may shatter current theories about the universe's early development.

Using the James Webb Space Telescope, astronomers discovered an extreme version of "little red dots" dubbed "The Cliff." Its ...

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and ...

(CNN) — Astronomers have spied a monster radio jet in the distant universe that’s twice the width of the Milky Way galaxy. The ancient object formed when the universe was less than 10% of its current ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...