We’re living in a weird time on Earth: a period when our planet has ice. Amid persistent and frequent record heat, it may be surprising to hear that Earth is currently relatively cool — at ...

Bones dating back 25,000 years suggest that humans lived in extremely icy conditions in Tibet, which were previously thought ...

"Humans didn't evolve 'early' or 'late' in Earth's history, but 'on time," when the conditions were in place. Perhaps it's only a matter of time, and maybe other planets are able to achieve these ...

Humans didn't evolve 'early' or 'late' in Earth's history, but 'on time,' when the conditions were in place. Perhaps it's only a matter of time, and maybe other planets can achieve these ...

You’ve heard it before: we’re well into the sixth mass extinction of life on earth. Only this time, unlike the other five big ones, humans are overwhelmingly the killers responsible.

Debris produced by human activity has now been spotted at a depth of 5,112 meters (3.2 miles) in the Mediterranean Sea.