The last major geomagnetic reversal triggered a series of dramatic events that have far-reaching consequences for our planet.
Just like in The Hitchhiker’s Guide to the Galaxy, the answer was 42.
An international team of scientists have recalculated the curves used for radiocarbon dating – a key method for archaeology and environmental science – for the first time in seven years.
Archaeological findings at the Chiquihuite Cave in Mexico suggest humans may have reached the Americas over 30,000 years ago – a period 15,000 years earlier than previously thought.
The arrival of humans in the Americas may predate the peak of the last ice age, new research shows.