As the universe expands, it feels like it must be spreading out from some initial point. But a physicist explains why that’s not how it works. Hint: space-time is involved.

In a $19.5 million NASA-funded mission, a team at George Mason University is heading a project to construct and launch a small satellite into orbit.

Astronomers use many methods to determine this number, including gravitational lensing, the universe’s expansion rate, and more.

Scientists propose that gravitational waves shaped the universe. Their model challenges inflation theory. How exactly did the universe start, and how did these processes determine its formation and ...

Scientists spotted an enormous black hole in the early universe that's growing at 2.4 times the theoretical Eddington limit.

Astronomers using the Webb Telescope may have found a new type of object: cold, glowing black hole stars from the early ...

Astronomers are racing to study 3I/ATLAS, an interstellar comet whose strange behavior reveals new clues about how other ...

The black hole, named RACS J0320-35, is about a billion times heavier than the Sun. It lies 12.8 billion light years from ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe ...

A black hole is growing at one of the fastest rates ever recorded, according to a team of astronomers. This discovery from ...

“The cosmos is also within us, we're made of star-stuff. We are a way for the cosmos to know itself.” - Carl Sagan Compared to the Sun, how big is the Earth? What is a scale model and how does it help ...