A groundbreaking theory suggests that dark matter—the invisible material shaping galaxies—may have formed before the Big Bang ...

An astonishing discovery from the James Webb Space Telescope may rewrite our understanding of the Universe’s early years. A ...

The Milky Way, our home galaxy, is part of a different supercluster called Laniakea, which, at 500 million light-years wide, ...

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

One of the most spectacular galaxies in Earth's sky is the subject of a new image release to help celebrate 35 years of ...