Where did Mercury get its water ice? Maybe from a single slow asteroid impact

Mercury may have gotten much of its polar ice within a single Mercurian day following a massive asteroid impact, a new study suggests.

The Milky Way may have devoured another galaxy named Loki, and astronomers think they’ve found its remains

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

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

Satellites captured footage of an underwater volcano eruption in a part of the sea that remains largely a mystery.

Unusual red northern lights over Japan suggest some solar storms are stronger than we thought

Researchers analyzing crimson auroras over Japan found the glowing displays stretched hundreds of miles higher into Earth’s atmosphere than expected, challenging long-held assumptions about the strength of geomagnetic stor…

‘Very interesting wiggles’ in data from silent NASA Mars spacecraft lead to unexpected solar wind discovery

Data from NASA’s MAVEN spacecraft revealed a never-before-seen atmospheric effect on Mars, revealing how solar storms may shape planets without strong magnetic fields.

Nothing beats a beautiful sunset (from space) | Space photo of the day for May 25, 2026

Nothing beats a beautiful sunset (from space) | Space photo of the day for May 25, 2026

Scientists just found a supercharged supernova — powered up by a magnetic star corpse

NASA’s Fermi Gamma-ray spacecraft has observed a super-bright, supercharged supernova explosion powered up by the creation of a highly magnetic dead star, or magnetar.

Scientists want to send a roly-poly robot filled with ‘dandelion drones’ to investigate hidden tunnels on Mars

Engineers are increasingly turning to the concept of “biomimicry” for the next generation of Mars robots.