A researcher claims to have found evidence of humans in Chesapeake Bay over 22,000 years ago. The assertion is yet another ...
These human ancestors lived during the Ice Age over 20,000 years ago. What do we know about them? The 'Solutreans' were an ancient people who lived in what is today Spain, Portugal and southern ...
The timeline for when humans first came to America has been shrouded in mystery, shifting by thousands of years on either side. Now a geologist from the Smithsonian Institution believes he has ...
An encounter with a cold cloud of gas and dust could have caused our planet's "protective giant bubble" to draw back. Scientists believe Earth may have briefly lost protection from the sun around ...
Earth may have been exposed to interstellar clouds which may have changed the chemistry of the planet's atmosphere and led to the development of multiple ice ages, researchers suggest ...