If you are sneezing this spring, you are not alone. Every year, plants release billions of pollen grains into the air, specks ...

Palynologists who study tiny pollen fossils share 4 stories found in grains that fell hundreds to millions of years ago.

The Sun’s most active region is turning to face Earth, bringing a chance of powerful solar storms and dazzling auroras ...

Jumping back in time, Thuban was positioned as a North Star some 4,700 years ago, as early civilizations thrived in ...

The Great Oxidation Event took place 2.4 billion years ago when certain bacteria started releasing a large quantity of oxygen ...

Smithsonian researchers trekked to a remote site in northern Canada to collect four-billion-year-old rock samples that could ...

From the fields where orange trees once flourished in Anaheim, a dream took root 70 years ago – and Disneyland was born. KTLA’s Andy Riesmeyer takes us on a trip back in time, peeling ...

The contrast between President Donald Trump and Chicago-born Pope Leo XIV couldn’t be more stark — politically, personally or ...

Ancient North American droughts were driven by Earth’s orbital shifts, study from the University of Helsinki finds.

The result: a world similar to the one that existed around 2.5 billion years ago – before the so-called “Great Oxidation ...

Living during the Middle Ages would present a vastly different experience compared to modern life. Texas Conservatives Want a California Monument Gone Lester Holt Will Exit NBC's ‘Nightly,' But ...

As the Middle East braces for another year of extreme heat, longtime war correspondent, Alissa Rubin, goes to Iraq — one of the hottest places on Earth ... And now it’s gotten to the ...