Life
Dead exoplanets can have oxygen-rich atmospheres too
If Earth's ostensible twin is out there, it might be a lifeless rock – dead worlds can build up oxygen in their atmospheres as well as living ones
News
Even lifeless exoplanets can have oxygen-rich air
News
Life
First animals may have lived with almost no oxygen
News
Health
Oxygen drop makes people with spine injury more mobile
News
Life
Drop air pressure to give chickens a stress-free death
News
Earth
The oceans are heating, acidifying and choking
News
Life
Primordial broth of life was a dry Martian cup-a-soup
News
Space
Biosphere 2: Saving the world within a world
Features
Earth
Everest’s final frontier: Life without oxygen
Features
Life
Dawn of the water eaters: How Earth got its oxygen
In Earth's youth, photosynthetic life forms thrived for a billion years without producing so much as a whiff of oxygen. So why did some start pumping it out?
Features
Technology
The top new tech that took Hillary’s team up Everest
Regulars
Life
Deep life: Strange creatures living far below our feet
Features
Earth
Ozone kills by hampering gas exchange in lungs
News
Life
Rusty rocks reveal ancient origin of photosynthesis
News