ALH-77005, a Martian rock found in Antarctica, contains numerous mineralized ‘biosignatures,’ including coccoidal, filamentous structures and organic...
The discovery of life on Mars would get pretty much everyone excited. But the scientists hunting for it would probably be happy no matter what the outcome...
Mars is dry today, but numerous ancient rivers are found across the planet’s surface and their existence is a challenge to models of planetary climate...
Saturn’s main ring system is associated with a set of moons (Pan, Daphnis, Atlas, Pandora, and Epimetheus) that are either embedded within it, or interact...
Astronomers once thought asteroids were boring, wayward space rocks that simply orbit around the Sun. But recent observations show that asteroids are anything...
A series of images taken by the NASA/ESA Hubble Space Telescope documents the formation of a Great Dark Spot on Neptune for the first time.
This is a composite...
In June 2018, the Japanese Aerospace Exploration Agency (JAXA) spacecraft and sample return mission Hayabsua-2 arrived at the near-Earth asteroid 162173...
A team of planetary scientists at the Australian National University found that our planet is made of the same elements as the Sun but has less of the...
NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission made the first-ever close-up observations...
Analyzing the data NASA’s New Horizons spacecraft has been sending home since the flyby of the Kuiper Belt object Ultima Thule, the mission team is learning...
After eight months of effort and sending more than a thousand commands in an attempt to restore contact with the Mars rover Opportunity, NASA declared...
A team of astronomers from the U.S. Naval Research Laboratory in Washington, DC, and the University of Colorado, Boulder, has found evidence for a fine...
‘Oumuamua, a recently discovered object of extrasolar origin, is a comet that rocks, according to a new study by astronomers at Yale University and Caltech.
This...
Using data from the LAMP (Lyman Alpha Mapping Project) instrument aboard NASA’s Lunar Reconnaissance Orbiter, planetary researchers have observed water...
Evidence of an enormous solar storm that struck the Earth around 2,610 years ago has been found in ice cores from Greenland.
An artist’s illustration...
Future manned trips to Mars will require on-site resources, including water, and planetary scientists from a project called ‘Subsurface Water Ice Mapping...
Observations by ESA’s Mars Express orbiter show evidence of an ancient planet-wide groundwater system on the Red Planet.
Mosaic of the Valles Marineris...
Collisions between bodies in our Solar System produce impact craters on large objects at a rate that depends on the population of impacting small bodies....
The presence of a new planet on the outskirts of the Solar System was proposed by Caltech astronomers Konstantin Batygin and Mike Brown in 2016 to explain...
Mars today is a cold, dry world, but it may not always have been so. Recent studies increasingly indicate that the planet once had a thicker, denser atmosphere...
