A team of planetary researchers led by Caltech has determined the chemical mechanisms by which the ancient Mars was able to sustain enough warmth in its...
Ceres is the largest object in the main asteroid belt, and the only potential ocean world in the inner Solar System.
A global scan for organic-rich sites...
Heating of complex organic matter in the presence of water may be an important source of Titan’s abundant atmospheric nitrogen and methane gases, according...
The near-Earth asteroid 2024 PT5 is on an Earth-like orbit that remained in the immediate vicinity of our planet for several months at the end of 2024.
2024 PT5...
In a study published in the journal Nature Geoscience, planetary researchers used high-resolution images and compositional data captured by orbiters to...
Astronomers have long thought that the upper clouds of Jupiter, which create the planet’s iconic pale brown belts, are made of frozen ammonia. But a...
Planetary scientists at the University of Arizona say they have discovered an entirely new type of cosmic collision.
Pluto and Charon are the largest binary...
In a new paper, planetary researchers from Texas A&M University and the University of Washington introduce a new thermodynamic concept called the centotectic...
Planetary scientists using the High Resolution Stereo Camera on ESA’s Mars Express spacecraft have captured stunning images of an enigmatic landscape...
Mars is located at the extreme limits of brine stability; and only a combination of the most favorable environmental conditions and lowest eutectic temperature...
Saturn’s icy rings could be much older than they appear due to their resistance to pollution from impacts with rocky debris.
Hyodo et al. suggest that...
Dark comets are small bodies with no detected coma that have significant accelerations explainable by outgassing of volatiles, analogous to the first interstellar...
The OPAL (Outer Planet Atmospheres Legacy) program obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in order to understand...
These asteroids are as small as 10 m across, making them the smallest asteroids ever observed in the main asteroid belt.
An artist’s illustration of...
Planetary researcher Tereza Constantinou and her colleagues at the University of Cambridge have examined the chemical composition of the Venusian atmosphere...
Contradicting the results of several recent studies, the new findings reopen the case that Jupiter-family comets like 67P/Churyumov-Gerasimenko could have...
Primordial black holes have been theorized for decades and could even be ever-elusive dark matter. Still, no primordial black hole has ever been observed....
These Earth-size ovals at Jupiter’s north and south poles are visible only at ultraviolet (UV) wavelengths, and appear and disappear seemingly at random,...
