SUNSET: 
How Jupiter’s Moon Ganymede Melted Its Core
A new model explains how Ganymede got its molten core — which in turn has given Jupiter's largest moon its magnetic field.
Curiosity Team Hits Jackpot: A Sample Full of Complex Organic Molecules
Scientists have identified at least seven carbon-rich molecules that NASA's Curiosity rover detected on Mars, and they're more complex than any found before.
Uranus’s Outermost Rings Are Made of Two Different Things
The James Webb Space Telescope has taken a deep look at the rings around the ice giant Uranus and found a new mystery to be solved.
Many Waters May Have Mixed on Mars
New analysis shows alkaline and acidic water may have mixed beneath the Martian surface, creating an environment that could theoretically have supported life.
Rubin Observatory Detects Record-Breaking Asteroids
The Rubin Observatory has detected thousands of new asteroids, including several that spin a lot faster than expected for typical rubble piles.
JWST Sees a Unique Mini-Neptune — the First to Match Predictions
The sub-Neptune TOI-421b is made of much the same stuff as its star — matching predictions, but bucking the trend among other similarly sized planets.
Meet Asteroid Donaldjohanson: Long and Lumpy
During a close flyby on April 20th, NASA’s Lucy spacecraft surprised its science team by revealing an asteroid that was once two smaller pieces that have been conjoined into a larger whole.
First Thermal Images of Mercury from BepiColombo
The European BepiColombo mission made a detailed heat map of a large swath of Mercury's surface during its most recent flyby.
Europa Clipper Successfully Passed By Mars En Route to Jupiter
NASA’s Jupiter-bound Europa Clipper flew past Mars today, using the planet’s gravity to slow its speed around the Sun
Pluto and Charon May Have Formed in a “Kiss-and-Capture”
Pluto and Charon may have formed differently than we thought
Makemake’s “Hot Spot”: Icy Volcano or Dusty Ring?
Even though it’s nearly 4½ billion miles from the Sun, far-flung Makemake has surprised observers with a warmer-than-expected temperature that is challenging to explain.
Europa Clipper Successfully Launches on Multi-Year Mission to Jupiter’s Icy Moon
After reaching Jupiter in 2030, the spacecraft will study Europa to help assess whether it has the conditions necessary to sustain life.
Europa Clipper Readies for Launch to Jupiter's Icy — and Maybe Habitable — Moon
NASA's spacecraft to Jupiter's icy moon Europa will explore the little world's potential habitability.
New Exploration of Titan's Seas
A new look at data from NASA's Cassini mission confirms methane cycles on Saturn's largest moon, Titan, just as water cycles on Earth.
How Long Has Jupiter's Great Red Spot Been Around?
A new study follows two lines of research to suggest that that Great Red Spot we see today has not, in fact, been going for as long as we thought.
What Martian Gullies Mean for Water on Mars
Martian gullies have been the center of a debate about whether Mars ever has flowing water. Now, a comprehensive study examines the question.
How Saturn’s Moon Mimas Might Have Melted
Maybe everything in the outer solar system is an ocean world.
Webb Telescope Reveals Worlds in the Farthest Reaches of the Solar System
James Webb Space Telescope data on distant worlds confirm some solar system formation hypotheses and confuse others.
Webb Telescope Spies Hints That Solar System's Outskirts Are a Hotbed of Activity
The James Webb Space Telescope has found that distant dwarf planets might be methane factories.
Lucy Mission Flies By Asteroid Dinkinesh, Finds Binary Moon (Updated)
The Lucy mission's flyby of the main-belt asteroid Dinkinesh resulted in a surprise — yet another asteroid moon!
