Sites on Earth that are similar to geologic features on other planets can be studied to better understand other worlds and even prepare for future exploration.
Properties of an atypical geologic feature on Mars indicate a volcanic eruption occurred as recent as a few tens of thousands of years ago.
One-dimensional models show how the expected variability in radiogenic heat from U and Th in a rocky planet’s mantle could control the presence of a magnetic field and thus habitability.
Mirror-like reflections are typically an indication of liquid, but looks can be deceiving. Today’s paper investigates alternative solutions for bright backscatter from Titan’s tropics.
The apparent paradox of an early warm wet Earth but wimpy young sun may be solved by improved constraints and sophisticated atmospheric models.