That day is the center of “Impact: The End of the Age of the Dinosaurs,” a new exhibition at the American Museum of Natural History in New York City. “There’s no doubt — well, arguably at least — that ...

While Big Car kills many of us quickly, in deadly collisions, it is killing many more of us slowly, by polluting the ...

90 Seconds to Midnight�The Latest Alarming Update on the Doomsday Clock! “I will not allow Donald Trump to silence me”: Army combat veteran Democrat responds to president’s threat ...

Rachel Bronson of the Bulletin of the Atomic Scientists explains how the annual Doomsday Clock is set, reflecting worldwide ...

Bill Taber is a mathematician at NASA’s Jet Propulsion Laboratory in Pasadena, California. Over the last 42 years he has overseen and participated in the development of the ground software systems ...