Could chemosynthesis support life on Europa and Mars?

Astrobiology investigates whether life could exist beyond Earth by examining potentially habitable environments in our Solar System, such as Mars and Jupiter's moon Europa. Research into extremophiles on Earth expands our understanding of the limits of life and informs speculation about extraterrestrial survival. Proposed missions like the Europa Lander aim to search for biosignatures and analyze subsurface materials directly.

What we know

• Astrobiology is an interdisciplinary field that studies the origin, distribution, and evolution of life in the universe, including the search for extraterrestrial life. [2]
• Mars, Europa, and Titan are considered by researchers to have once had or currently maintain conditions that could permit the existence of life. [4]
• The proposed NASA Europa Lander mission concept aimed to search for biosignatures at the subsurface approximately 10 centimeters deep. [3]
• Extremophiles are organisms that can thrive in extreme environments, and their study informs scientific speculation about extraterrestrial life. [5]

Where to go next

• how it workedWhat are extremophiles and how do they survive?
• how we knowHow does the Europa Clipper mission study Jupiter's moon?
• the bigger pictureWhat makes planetary bodies in our Solar System habitable?
• a case in pointWhat were the goals of the NASA Europa Lander mission concept?
• compared withHow does exobiology differ from astrobiology?
• an unexpected connectionCan organisms used to clean up pollution inform space exploration?Extremophiles studied for cleaning up hazardous human pollution are simultaneously used to expand our knowledge of the biological limits of extraterrestrial life.

Sources

• [1]astrobiology (Wikidata Q411) · CC0 1.0
• [2]Astrobiology · CC BY-SA 4.0
• [3]Europa Lander · CC BY-SA 4.0
• [4]Planetary habitability in the Solar System · CC BY-SA 4.0
• [5]Extremophile · CC BY-SA 4.0