Former Dallas Cowboys star tight end Pettis Norman has died, the team announced on Monday. He was 86 years old. Norman played for the Cowboys from 1962-70, catching 124 passes, including 15 for ...

Stephen Hawking At the age of 22, renowned theoretical physicist Stephen Hawking was diagnosed with a rare form of amyotrophic lateral sclerosis, a motor neuron disease (MND). Confined to a wheelchair ...

See if you know the history behind popular gadgets and inventions that made life easier. Fine Art Images/Heritage Images/Getty Images (invention), ahmad agung wijayanto/Shutterstock (question ...