In the beginning, Earth was a hot and lonely planet. It also lacked water. Then, after hundreds of millions of years, the planet cooled, oceans formed — and life emerged.…

A beach day on early Mars would not have been a pleasant getaway. A new look at the Red Planet has turned up a possible ancient coastline in its northern…

We may not often see it, but all plants are on the move. Plants move in slow motion as they grow. Their roots sense gravity to stretch down into soil.…

Scaly sailors appear to have made a record-setting ocean voyage. Tens of millions of years ago, iguanas in North America crossed the Pacific Ocean. Clinging to plants washed out the…

Lepton (noun, “LEP-tawn”) A lepton is a type of elementary particle. An elementary particle is one that scientists believe is not made of anything smaller. Besides leptons, these include quarks…

Maybe you’ve heard of the TV show The Great British Bake Off. Its contestants take part in baking challenges in hopes of being named champion. But have you heard of…

Scene: A patrol boat cruises through the water, just off a Caribbean island. Cue the pounding drums — a movie-trailer signal that danger approaches. Enter Spinosaurus. Three large, spiny sails…

An estimated one in every 10 U.S. kids has ADHD. That’s short for attention-deficit/hyperactivity disorder. Those with multiple ADHD symptoms are more likely than others to vape, smoke or use…