New research suggests Uranus' moon Ariel may have once harbored a 100-mile-deep subsurface ocean, indicating the potential for multiple hidden ocean worlds in the Uranian system.
A new study suggests Earth formed primarily from material in the inner Solar System, challenging theories about the origin of its water and other volatile substances.
Interstellar comet 3I/ATLAS contains unusually high levels of methanol, suggesting it formed under conditions different from those in our solar system.
NASA's Hubble Space Telescope has discovered a large, ten-sided atmospheric pattern around Saturn's south pole, a new feature distinct from its northern hexagon.
NASA-funded studies suggest the Sun's past activity and its galactic journey influenced Earth's ancient climate, from ice ages to early planetary warmth.
A meteorite that crashed through a New Jersey roof in 2024 contains ancient salty chemistry and organic compounds, offering new insights into how asteroids may have delivered the building blocks of life to early Earth.
A new study suggests Jupiter's strong magnetic field protected its large moons during formation, while Saturn's weaker field led to only one dominant moon, Titan.
A new Kuiper Belt object, 2023 KQ14, has a stable orbit that challenges the theory of a hidden ninth planet influencing the outer Solar System.
New research suggests that frequent cosmic impacts on early Earth fractured its crust, creating permeable regions that facilitated fluid circulation and prebiotic chemistry.
A compact X-ray telescope developed by Tokyo Metropolitan University could create the first complete chemical map of the Moon, revealing its formation and evolution.
The James Webb Space Telescope has solved the mystery of Saturn's changing rotation rate, attributing it to atmospheric winds driven by the planet's aurora.
NASA's Curiosity rover found that hematite crystals in Mars's Gale Crater record ancient climate changes, indicating long periods of warm, potentially habitable groundwater.
The James Webb Space Telescope has discovered a gas giant exoplanet, WASP-94A b, where rock clouds form in the morning and vanish by night.
New research indicates that supermassive black holes can render exoplanets uninhabitable by stripping away atmospheres and depleting ozone, even at vast distances.
New data from NASA's Juno spacecraft suggests Io's thermal output is significantly higher than previously estimated, potentially by an order of magnitude.
Astronomers used the James Webb Space Telescope to analyze the super-Earth LHS 3844 b, finding it to be a dark, airless, rocky planet with a surface composition similar to basalt or Earth's mantle, likely shaped by space weathering.