Expert Voices Paul Sutter: Explaining astrophysics and astronomy

Wormholes may be stable after all, a new theory suggests, contradicting previous predictions that these hypothetical shortcuts through space-time would instantly collapse.

Hiding beneath the outer layers of some planets, there may be something spectacular: a constant rain of diamonds.

The recently launched James Webb Telescope should help determine if dark matter is made up of primordial black holes.

The world could end not with a bang, but with a quantum vacuum decay of the ground state of the universe to its true minimum.

The formation of the solar system is a challenging puzzle for modern astronomy and a terrific tale of extreme forces operating over immense timescales. Let's dig in.

In a recent study, researchers determined that about 1% of all the "normal" (that is, not dark) matter in the universe is bound up inside black holes.

Since 2014, there have been over 300 proposals for solutions to the "crisis in cosmology." None of these proposals is universally agreed upon by cosmologists, and the crisis just keeps getting worse.

The elements around some giant black holes may be subtly different from the cosmic average, retaining a relic memory of the young universe.

If scientists want astronomy to thrive throughout the 21st century, we need a new approach: to view new observatories through a lens of public benefit.

Global satellite-based high-speed internet access will come at a cost, polluting the skies and contaminating astronomical observations.