Galaxies are astronomical objects composed of billions or even trillions of stars. Our Earth and solar system are just a tiny ...

In this series, we cover provocative questions in astronomy. This week: the mysterious extragalactic signals known as Fast ...

Astronomers have identified a quasar that may help explain how the universe’s “dark ages” finally ended. Astronomers have ...

Dark Energy 'Doesn't Exist' So Can't Be Pushing 'Lumpy' Universe Apart Dec. 20, 2024 — One of the biggest mysteries in science -- dark energy -- doesn't actually exist, according to researchers ...

The biggest stories of the day delivered to your inbox.

Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to the first 1 billion years ...

These jets become elusive the farther back in time astronomers try to look because of the so-called cosmic microwave ...

More than a decade of data about the particles zipping around our sun could be used to solve many mysteries, from the ...

An international team of researchers has found dark matter dominating the halos of two supermassive black holes in galaxies ...