His answer? Dark matter, the hidden mass that scientists cannot see but know is present because of how surrounding objects ...

An international team of researchers led by the Leibniz Institute for Astrophysics Potsdam (AIP) has shed light on a ...

Such an exponential expansion may seem minor, but it is equivalent to a grape in the palm of your hand swelling to become ...

One of the Milky Way’s smallest galactic neighbours seems to have a supermassive black hole at its centre, upending ...

Dark energy and black holes are two of the most mysterious topics when it comes to space, but they might actually be linked. And causing the universe to expand.

Small and unassuming, Segue 1 is a nearby dwarf galaxy containing only a handful of stars—too few to provide the gravity ...

The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when ...

A mysterious gamma-ray glow from the Milky Way's core has scientists divided. While pulsars were the leading theory, new ...

An unexpected monster black hole was found hiding inside one of the Milky Way's tiniest neighbors, rewriting what scientists ...

A new study suggests the Milky Way’s gamma-ray glow could be a dark matter signal shaped by ancient galactic mergers.

Evidence of this quantum layer may be coming soon. Here’s what you’ll learn in this story: Physicists are still puzzling over ...

Astronomers have shed light on a decades-long debate about why galaxies rotate faster than expected, and whether this ...