Measurements taken at Earth's neighbors, Mars and Venus, show the battle between high-energy cosmic rays from beyond the solar system and the influence of the sun in the inner solar system.
Our solar system is filled with planets, asteroids, comets, the sun and more, making it a wealth of discoveries waiting to be found. See the latest discoveries from across our solar system here.
NASA's bold mission to explore Jupiter's icy moon is facing tight schedules getting instruments installed and ready for the planned 2024 launch.
A flyby of Jupiter by NASA's Juno spacecraft has delivered a stunning image of the gas giant's cloud tops and moons Callisto and Io.
After taking a few hits, NASA's newest space telescope will adjust its observation strategy to avoid its mirror being struck by tiny space rocks.
A NASA Venus mission will have to wait at least three more years to launch due to issues with the agency's Psyche asteroid probe.
OWLS, the Ocean Worlds Life Surveyor, would autonomously search for life on the icy moons of the outer solar system.
The dwarf planet Haumea may be the weirdest object in the solar system. Now NASA researchers may finally understand how it was formed.
NASA will continue to develop its troubled Psyche asteroid mission, with the aim of launching it in October 2023 — a year later than planned.
The boundary between the heliosphere and the interstellar medium appears to be moving in an unexpected manner.
Uranus is a strange world, knocked on its side and with a lopsided magnetic field. Its moons may be even stranger.
Astronomers have captured the shadow of the space rock Didymos, target of NASA's asteroid-smashing mission, as it passed in front of distant stars.
The near-Earth asteroid Ryugu formed far from the sun, in the cold depths of the outer solar system, according to new analysis of samples returned from Ryugu by the Japanese Hayabusa2 mission.
Five years after spotting 'Oumuamua, the first known object from beyond our solar system passing through, scientists are still figuring out what the strange object says about planetary systems.
Scientists have uncovered a new mystery about Uranus' rings buried deep in data from NASA's iconic Voyager 2 mission.
Shallow lakes of salty liquid water throughout the crust of Jupiter's moon Europa could cause cryovolcanic eruptions and plumes of icy material to burst from its surface.
Astronomers have revealed the most stunning and detailed images of Europa and Ganymede, two of Jupiter's largest moons, ever obtained from the surface of Earth.
NASA's Dragonfly mission to Saturn's largest moon will touch down on a terrain of dunes and shattered, icy bedrock, according to a new analysis of radar imagery from the Cassini spacecraft.
Fabulous portraits of Jupiter's mysterious icy moon Europa captured by NASA's Juno mission reveals the moon, which may possibly harbor life, in unexpected colors.