America 250: How the rise of electricity more than a century ago mirrors today’s AI revolution

Astronomers measure the mind-blowing power and speed of black hole jets for the first time

Gatorade, inventor of the sports drink, is getting a rebrand targeting non-athletes

A raggedy toy to a treasured symbol of childhood: The teddy bear

A lost icon: The American chestnut and its central place in the eastern landscape

Ranch dressing: An American staple that actually began life on … a ranch