Only about 12kg of oxygen is produced per second on Europa, which is on the lower side of previous estimates from about 5kg to 1,100 kg per second.
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Articles on Microbial life
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Control experiments are critical in informing the search for alien life.
Five out of the six essential elements required for life on Earth were known to exist on Enceladus. Now the sixth and final one has been found too.
Groundwater is the second-largest store of water on Earth. Governments and industry use groundwater reservoirs to store waste, but it may also have environmental functions that haven’t been revealed.
No conclusive evidence that extraterrestrial life exists has been found…yet.
A new study argues we should search for microbial life rather than human-like aliens.
Scientists are starting to use genetic information from bacteria to measure the health of vast areas of the ocean.
If China succeeds, it will be the first country ever to visit and land on Mars on its first try.
Water at informal settlements, where sanitation and waste management facilities were absent, had high bacteria levels.
Scientists don’t claim to have evidence of life on Venus but they have ruled out pretty much everything else.
This summer, NASA’s Mars Perseverance rover is taking the next giant leap in our search for signs of life beyond Earth.
Collecting samples from Mars and brining them back to Earth will be a hugely complicated task, but it may be our best bet of finding alien life.
NASA’s Europa Clipper mission just got the green light - here’s what it could achieve.
Whether anything could live in Europa’s subsurface ocean depends on what kind of salt it contains. Now scientists have found out.
For the first time, an instrument orbiting Mars and a rover on the surface have detected methane simultaneously – raising hopes for finding life on the red planet.
Using the family relationships between single-celled protists alive today, researchers hypothesized what their evolutionary ancestors looked like – and then looked in the fossil record for matches.
There’s enough dissolved oxygen in the salty lake below Mars’ surface to support simple lifeforms such as sponges. Here’s what that means for space exploration.
Studies from our own planet shed light on whether there could be life in a subglacial lake on Mars.
Nearly 50 years since the first man walked on the moon, our morals are still stranded on Earth.
Top contributors
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Post Doctoral Research Fellow in Space Science, University of Birmingham
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Professor of Planetary and Space Sciences, The Open University
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Professor of Physics, Deputy Director (Solar System) at the Mullard Space Science Laboratory, UCL
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Australian Research Council Future Fellow, The University of Western Australia
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Senior Lecturer in Earth System Science, Northumbria University, Newcastle
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Senior Lecturer in Biology, Brunel University London
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Senior Lecturer in Physics, Nottingham Trent University
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Senior Lecturer in Geology, University of Aberdeen
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Senior Lecturer in Philosophy, University of St Andrews
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Lecturer of Environmental Microbiology, Queen's University Belfast
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Professor, Department of Civil, Geological and Environmental Engineering and School of Environment and Sustainability, University of Saskatchewan
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Professor, Department of Hydrology and Atmospheric Sciences, University of Arizona
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Assistant Professor of Biological Sciences, Mississippi State University
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Assistant Professor of Zoology, Universidade de São Paulo (USP)
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Associate Professor of Planetary Science, Western Washington University
