A deep, hot biosphere exists beneath the Earth's crust containing microbial life
the verdict
SUPPORTED
the evidence backs this
confidence 88/100
Extensive scientific literature confirms the existence of a vast deep biosphere within the Earth's crust, where diverse microbial communities thrive under extreme conditions supported by chemical energy sources.
Evidence for · 10
Microbial activity in the marine deep biosphere: progress and prospects
2013 · cited by 101
Paper 0 discusses the extensive marine deep biosphere consisting of microbial habitats within sediments and the upper basaltic crust.
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More for · 9
Biosignatures of ancient microbial life are present across the igneous crust of the Fennoscandian shield
2021 · cited by 20
Paper 1 presents isotopic and molecular signatures demonstrating that Earth's crust hosts microbial life up to several kilometers in depth.
Editorial: Geomicrobes: Life in Terrestrial Deep Subsurface
2017 · cited by 10
Paper 2 highlights the deep terrestrial subsurface as an active biosphere housing microbial communities in extreme conditions.
A New Frontier for Palaeobiology: Earth's Vast Deep Biosphere.
2019 · cited by 0
Paper 3 reviews the global deep biosphere hosted by rocks and sediments beneath land and sea, containing massive amounts of biomass.
The deep, hot biosphere.
1992 · cited by 0
Paper 4 originally and broadly establishes the concept of a deep, hot biosphere independent of surface energy sources.
Under the sea: microbial life in volcanic oceanic crust.
2011 · cited by 0
Paper 5 explores microbial life harbored in igneous oceanic crust as part of the deep-subsurface biosphere.
In situ Detection of Microbial Life in the Deep Biosphere in Igneous Ocean Crust.
2015 · cited by 0
Paper 6 detects active microbial life and cell densities in deep igneous ocean crust boreholes.
Low Energy Subsurface Environments as Extraterrestrial Analogs.
2018 · cited by 0
Paper 7 examines Earth's low-energy subsurface environments, including continental and oceanic crust, as habitats for chemotrophic life.
Microbial Abundance and Diversity in Subsurface Lower Oceanic Crust at Atlantis Bank, Southwest Indian Ridge.
2021 · cited by 0
Paper 8 quantifies prokaryotic cells and analyzes microbial communities in lower oceanic crust samples.
Hydrogeological controls on microbial activity and habitability in the Precambrian continental crust.
2024 · cited by 0
Paper 9 investigates deep Precambrian continental crust groundwater fracture networks inhabited by microbial communities.