''Alien Oceans: The Search for Life in the Depths of Space'' is a 2020 non-fiction book by American writer and scientist Kevin Peter Hand. The book explores the possibility of life on planets and moons with subsurface oceans, and argues that the common understanding of the

habitable zone In astronomy and astrobiology, the habitable zone (HZ), or more precisely the circumstellar habitable zone (CHZ), is the range of orbits around a star within which a planetary surface can support liquid water given sufficient atmospheric pressu ...

should include natural satellites around gas giants. Satellites discussed in the book include

Europa Europa may refer to: Places * Europa (Roman province), a province within the Diocese of Thrace * Europa (Seville Metro), Seville, Spain; a station on the Seville Metro * Europa City, Paris, France; a planned development * Europa Cliffs, Alexan ...

Enceladus Enceladus is the sixth-largest moon of Saturn and the 18th-largest in the Solar System. It is about in diameter, about a tenth of that of Saturn's largest moon, Titan. It is covered by clean, freshly deposited snow hundreds of meters thick, ...

, and

Triton Triton commonly refers to: * Triton (mythology), a Greek god * Triton (moon), a satellite of Neptune Triton may also refer to: Biology * Triton cockatoo, a parrot * Triton (gastropod), a group of sea snails * ''Triton'', a synonym of ''Triturus' ...

. Hand wrote the book to make the scientific information it discusses readily accessible to the public.

References

2020 non-fiction books Books about extraterrestrial life Astronomy books American non-fiction books Princeton University Press books {{astronomy-book-stub