Imagine a universe that barely exists—just fractions of a second old, too young to look anything like the cosmos we know ...

Early Universe could host primordial black holes, cannibal stars and boson stars, offering new insights into dark matter, ...

James Webb Space telescope spots 'big red dot' in the ancient universe: A ravenous supermassive black hole named 'BiRD' ...

One hundred degrees might seem hot, when you’re sweating through your shirt in July—but on a cosmic scale it barely registers. The Sun itself is over 15 million degrees; and in a hottest-object ...

Black holes are places where gravity is so powerful that nothing — not even light — can escape. Rather than being empty, black holes are chock full of matter that gets squeezed into a teensy space.

A peculiar object discovered by the James Webb Space Telescope just 700 million years after the Big Bang could reveal the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

The study is published in the latest issue of The American Journal of Physics ("All objects and some questions"). Masses, sizes, and relative densities of objects in our Universe. (© The American ...

Using a worldwide network of radio telescopes including the Green Bank Telescope in West Virginia, astronomers have discovered a mysterious object in the distant universe. A million times the mass of ...

Eighteen-year-old YouTuber Christopher Slayton recently crafted entire planets, black holes, galaxies, and, well, the entire cosmos. And he used nothing but the blocks within Minecraft. In the more ...

On Wednesday, NASA’s Lucy mission got one step closer to investigating the enigmatic asteroids near Jupiter. This story, however, really began in another corner of the cosmos more than three decades ...