Slope streaks are dark features on Martian slopes that form spontaneously and fade over years to decades. Some planetary scientists have interpreted those...
Titan is the only moon in the Solar System with a significant atmosphere, and one that has long captivated planetary scientists. According to a new analysis...
Mars hosts various auroral processes despite the planet’s tenuous atmosphere and lack of a global magnetic field. To date, all aurora observations have...
The Sun rarely produced extreme solar particle events, orders of magnitude stronger than everything directly observed. Their enormous power can greatly...
Using data from the NASA/ESA/CSA James Webb Space Telescope and the Keck II telescope, astronomers found evidence of cloud convection in the northern hemisphere...
The Jovian aurorae are hundreds of times brighter than those seen on Earth, says a team of astronomers by University of Leicester’s Dr. Jonathan Nichols.
These...
Planetary scientists expected the outermost layer of the crust of Earth’s hotter twin would grow thicker and thicker over time given its apparent lack...
Vesta, the second largest asteroid in our Solar System, has not experienced full differentiation into a metallic core, silicate mantle and basaltic crust,...
Observations of large valley networks on today’s Mars suggest formation by flowing water. However, most climate models cannot sustain temperatures above...
An asteroid called Donaldjohanson was captured by NASA’s Lucy spacecraft during a flyby on April 20, 2025. At closest approach, the spacecraft came within...
Earth’s coastlines are fascinating places where liquids mix and materials are shaped into distinct landforms like river deltas. Similar active coastlines...
NASA’s Curiosity rover has found evidence of a carbon cycle on ancient Mars, bringing scientists closer to an answer on whether the planet was ever capable...
Recent measurements from NASA’s InSight mission show that Mars’ core is less dense than planetary scientists previously believed. This indicates that...
Astronomers using the Gemini Multi-Object Spectrograph (GMOS) on the Gemini South telescope have determined that the recently-discovered near-Earth asteroid...
The rotation period of Uranus was estimated to be 17.24 hours in 1986 from radio auroral measurements made by NASA’s Voyager 2 spacecraft. Using the...
A team of biologists from the United States, Canada, the United Kingdom and France has developed a scenario of what life on Titan, Saturn’s largest moon,...
A Martian dust devil can be seen consuming a smaller one in a series of images taken by a navigation camera aboard NASA’s Perseverance rover.
Dust devils...
The destructive power of an impacting asteroid is primarily estimated by knowledge of its size. The near-Earth asteroid 2024 YR4 reached a peak 2032 impact...
Certain lichen species can withstand Mars-like conditions with an X-ray radiation dose of 50 Gy (Grays) that is expected on the Mars surface over one year...
