How did Earth transform from a hostile, acidic ocean world to one that nurtured life? Scientists at Yale and in Singapore ...
Humans evolved late in Earth history. While this timing inspired the conclusion that humanlike life is a cosmic improbability ...
There seems to be too much of a radioactive element in rocks deep in the Pacific Ocean – how did it get there 10 million ...
Extensive evidence, including global temperature and sea ice data, shows Earth's climate is changing due to human activity.