NASA’s Juno orbiter captured these views of the tiny, red moon Amalthea and its parent planet and during a close flyby on March 7, 2024.
These views...
The dwarf planet Ceres hosts permanently shadowed areas in its polar regions, and these regions are an interesting analog to Mercury and the Moon. Ceres’...
An ultra-weak geomagnetic field between 591 and 565 million years ago (Ediacaran period) coincided with a significant increase in the oxygen levels in...
Titan, the largest moon of Saturn, harbors an internal low-density ocean of water or ammonia, according to an analysis of archival data from NASA’s Cassini...
Despite its Earth-like size and source material, Venus is extremely dry, indicating near-total water loss to space. Using computer simulations, planetary...
In May 2017, NASA’s Curiosity rover observed higher than usual amounts of manganese in the lakebed rocks within Gale crater, Mars. These sedimentary...
Recovering ancient records of Earth’s magnetic field is challenging because the magnetization in rocks is often reset by heating during tectonic burial...
Sulfur and chlorine isotopes in Io’s atmosphere indicate that it has been volcanically active for the entire 4.57 billion-year history of the Solar System.
This...
Fully understanding how a rocky planet becomes habitable and remains so is a fundamental challenge for planetary scientists and astrobiologists, given...
A set of 632 main-belt asteroids (178 previously known and 454 unknown objects) has been identified in the archival images from the NASA/ESA Hubble Space...
Pluto’s surface is dominated by the huge, pear-shaped basin Sputnik Planitia. It appears to be of impact origin, but modeling has not yet explained its...
In August 2021, the ESA/JAXA Mercury-bound BepiColombo spacecraft performed its second flyby of Venus and provided a short-lived observation of its induced...
A duo of planetary scientists from Brown University and the SETI Institute has found that the Kuiper Belt object (486958) Arrokoth, which was the target...
On March 25, 2024, Hanjie Tan, an astronomy Ph.D. student in Prague, Czech Republic, spotted a comet in an image from the ESA/NASA Solar and Heliospheric...
Using data from ESA’s ExoMars Trace Gas Orbiter and NASA’s Mars Reconnaissance Orbiter, planetary scientists have created the 1:30000 scale geological...
Planetary scientists have long speculated about the potential habitability of Venus, not at its hot surface, but in the cloud layers located at 48-60 km...
The tricarbon molecule (C3) is likely produced in the upper atmosphere of Titan by the reaction of abundant acetylene with atomic carbon.
This view of...
Active asteroids behave dynamically like asteroids but display comet-like comae. These objects are poorly understood, with fewer than 60 identified to...
