Not all stars are created equally. Astronomers believe that the first stars to form after the Big Bang were mostly made of ...

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

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

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

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

Biggest vs smallest - how do we measure up in the grand scheme of the universe? Explore the fascinating scales of existence, ...

Check out every Marvel star who appeared in Harry Potter, ranked by their character’s story impact—from minor cameos to ...

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole ...

There are several candidates for the biggest star in the universe. One of them, VY Canis Majoris, is over 1,500 times the width of the sun. If it were placed in our solar system, it would stretch to ...

Earlier this month astronomers were thrilled to discover only the third known interstellar object ever seen in our solar system. Now dubbed 3I/ATLAS, the suspected comet has just zoomed past the orbit ...