The Earth's core is cooling down, and one day it will be completely solid – when that happens, Earth might look a lot like Mars.
The upper atmosphere of Venus is the most Earth-like extra-terrestrial location in the solar system. It could even host life.
Indigenous communities lived in the Amazon for thousands of years without chopping down their forests.
How long before we find a planet just like our own?
Sonification is a technique for converting data into sound. It could transform the study of distant worlds.