On September 9, 1883, ominous smoke hung over Huế. The sun was blue-green, and throughout the day, people on the streets had ...

A speculative paper argues that ancient planetary flybys may have helped trigger some of Earth’s mass extinctions.

But it turns out the simplest, or rather the most natural, solution might be key to keeping your mop—and it’s been hiding ...

To participate, submit your response here by July 17 at 9 a.m. Eastern. This week’s winners will be announced by July 29. By The Learning Network Ella Cheng talks about how Hollywood can engage her ...