Samantha Mathewson

A strange, spider-like scar on Jupiter's icy moon Europa may mark where salty water once surged up through its fractured crust.

A novel "X-arithmetic" technique reveals how black holes shape the universe's largest structures.

For the first time, we can see and hear lightning-like discharges in Mars' thin atmosphere.

Frequent flares from the nearby star TRAPPIST-1 could offer new clues in the search for habitable planets beyond Earth.

NASA's Nancy Grace Roman Space Telescope is now fully assembled and ready to begin launch preparations this summer.

The Very Large Telescope's SPHERE instrument captured unprecedented images of 51 dusty rings shaping young planetary systems.

A new view of Mars showcases a dramatic impact crater on the Red Planet with its debris wings unfurling across the surface like a butterfly in flight.

This infrared view offers the clearest look yet at how dwarf galaxies merge, evolve, trade gas and ignite waves of new stars.

Astronomers have spotted a distant world "shedding" its atmosphere into space in real time, creating a giant cloud of helium gas that sweeps across its parent star well before the planet itself.

A newly discovered tectonic "regime" may explain why Earth has active plates while Venus remains stagnant.

NASA's OSIRIS-APEX spacecraft captured stunning new images as it whipped past Earth during a high-speed slingshot maneuver, sending the probe on a fast track toward the asteroid Apophis.

Though it generated beautiful auroras around the world, the Gannon solar storm in 2024 was also a little dangerous.

New images from the Mars Express orbiter reveal evidence of a past ice age at Mars's mid-latitudes and shine light on the planet's dynamic climate history.

New observations from the Virtual Telescope Project reveal 3I/ATLAS's sharply defined ion tail, highlighting increased activity as the interstellar comet moves through the inner solar system.

Some of Earth's oldest rocks buried deep in Western Australia may hold new clues about the dramatic event that gave rise to our moon.

Astronomers have unveiled the largest low-frequency radio color image of the Milky Way ever created, offering a sprawling, interactive cosmic panorama with unprecedented detail.

Scientists have developed a laser-based ice drill concept that could enable deeper, low-power exploration of ice on moons and planets in our solar system.

An unexpected monster black hole was found hiding inside one of the Milky Way’s tiniest neighbors, rewriting what scientists thought they knew about how small galaxies hold themselves together.

An innovative technique for measuring the force acting on individual grains of sand could help scientists uncover how winds have shaped the surface of Mars.

Europe has just run its most extreme space weather simulation yet — a scenario so severe that no spacecraft was left unscathed.

Astronomers have unveiled a new catalog of massive galaxy clusters, revealing new insight on the evolution of the universe.

The cosmos is getting its own red carpet. The inaugural Global Space Awards will launch later this year with world-renowned physicist and science communicator Brian Greene set as the host.

If life ever existed on Mars, traces of it might still be frozen beneath the planet’s icy surface.

Blocks of carbon dioxide ice appear to carve mysterious gullies on Mars as they melt down dune slopes and blast away sand.

Satellites recorded the largest ocean swells ever seen from space, highlighting how massive waves can act as storm “messengers,” carrying a storm’s power across entire oceans.