From orbit, Earth revealed a spectacle few ever witness. As a veteran astronaut prepared to return home, space itself seemed ...

Microscopic ocean algae produce a huge share of Earth’s oxygen—but they need iron to do it. New field research shows that ...

By fine-tuning the surroundings of single cobalt atoms, researchers reveal how tiny design changes can steer oxygen reactions ...

In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to ...

Scientists observing the red giant star R Doradus have found that starlight isn’t strong enough to drive its stellar winds, ...