Humans will likely go extinct eventually, leaving behind a planet that has to adjust in their wake. While there is no true consensus as to what a human-free world will look like, there are a number of ...

Could Earth have hosted an advanced civilization before humans? This intriguing question is at the heart of the Silurian Hypothesis, a theory that challenges our understanding of Earth’s history. By ...

Have you ever wondered what the world would be like if everyone suddenly disappeared? What would happen to all our stuff? What would happen to our houses, our schools, our neighborhoods, our cities?

Imagine a planet where giant beast creatures ruled, owned the television and radio broadcasts, and covered the oceans. Hundreds of millions of years earlier than the arrival of the very first human ...

We could be severely undercounting the number of humans living on Earth, researchers suggest. While the United Nations has determined that as of last summer, there were about 8.2 billion humans ...

Our first meeting was a bit awkward. One of us is an archaeologist who studies how past peoples interacted with their environments. Two of us are geophysicists who investigate interactions between ...