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.
Scientists used Earth's magnetic field and atmosphere as a giant detector to search for ultralight dark matter particles, improving axion limits and finding mysterious dark photon signals.
Scientists used Earth's magnetic field as a giant dark matter detector, setting new limits on axion interactions and finding mysterious dark photon signal candidates.
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.
NASA's Nancy Grace Roman Space Telescope is set to launch, offering a field of view 100 times larger than Hubble's while maintaining similar detail, enabling broad cosmic surveys and exoplanet imaging.
The James Webb Space Telescope has captured new infrared images of the Lion Nebula, revealing intricate details of a dying star's remnants and its ongoing evolution.
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.
The universe's expansion can cause distant galaxies to recede faster than light, a phenomenon that does not violate Einstein's theory of relativity because it involves the stretching of space itself, not the movement of objects through space.
A new study suggests stellar activity can distort extraterrestrial radio signals, making them harder to detect and potentially explaining the lack of observed alien communications.
A theoretical study suggests that dying stars might create new universes powered by dark energy, forming gravastars instead of black holes.
New research indicates that supermassive black holes can render exoplanets uninhabitable by stripping away atmospheres and depleting ozone, even at vast distances.
Astronomers have captured the clearest direct image of a cosmic web filament, revealing a three-million-light-year strand connecting two ancient galaxies.
A new study explores electron-nuclei interactions, providing fresh constraints on dark matter candidates and hypothetical particles beyond the Standard Model.
Solar radio bursts observed by the Parker Solar Probe reveal hidden magnetic switchbacks near the Sun, providing new insights into the Sun's magnetic field structures.
New research suggests gravitational waves in the early universe may have transformed into particles that eventually became dark matter, addressing a major mystery in physics.