Two new studies suggest that Europa's carbon dioxide deposits originate in the moon's subsurface ocean. The results support a habitable ocean environment.
We know there is water ice on the moon. But a new study suggests there is less of it in the moon's permanently shadowed regions than we previously thought.
Researchers show how an alien civilization on TRAPPIST-1e could find us by detecting our pollution. They simulated Earth as seen from 40 light-years away.
Astronomers using the ALMA telescope have taken a close look at galaxy 9io9. The galaxy's magnetic field is the most distant that scientists have yet seen.
NASA's future Habitable Worlds Observatory will analyze the atmospheres of exoplanets, looking for signatures of alien life. Read more about this mission.