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A 'lost planet' may have given Jupiter and Uranus their moons
By Kiona N. Smith published
New research suggests the moons of Jupiter and Uranus may hint that our planetary neighborhood once had a third ice giant.

James Webb Space Telescope discovers a black hole that formed before its host galaxy. Scientists aren't sure how
By Robert Lea published
"It's a paradigm shift, a total revisiting of the classical scenarios of how black holes form and grow."

Most powerful 'ghost particle' ever may have come from a cosmic particle accelerator fed by a black hole
By Robert Lea published
"We have never observed such a high-energy neutrino before, and if it turns out to come from cosmic accelerators like blazars, it would give us new insight into how these objects can emit particles at energies beyond what we previously expected."

Where did Mercury get its water ice? Maybe from a single slow asteroid impact
By Sharmila Kuthunur published
Mercury may have gotten much of its polar ice within a single Mercurian day following a massive asteroid impact, a new study suggests.

Laser beams blast through the cosmos | Space photo of the day for May 27, 2026
By Chelsea Gohd published
Fear not, these lasers are just doing science.

The Milky Way may have devoured another galaxy named Loki, and astronomers think they've found its remains
By Julian Dossett published
Astronomers say that they have identified 20 stars that may have grown up together in a dwarf galaxy named "Loki" that eventually became part of our Milky Way.

Artemis moon base will cover 'hundreds of square miles' with hopping drones and new lunar rovers, NASA says
By Mike Wall published
NASA envisions its moon base covering hundreds of square miles, and hopping scout drones may mark the facility's perimeter. The agency just awarded $1 billion in contracts to get the ball rolling.

Satellites imaged an underwater volcano erupting — but scientists have no idea what's actually happening on the seafloor
By Stefanie Waldek published
Satellites captured footage of an underwater volcano eruption in a part of the sea that remains largely a mystery.
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