From the Smithsonian magazine archives, some of our favorite reader questions about our nation's founding upon its 250th ...

The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar ...

PHOENIX — Like a motorboat doing doughnuts in a lake, Betelgeuse’s companion star leaves a wake in the giant star’s atmosphere. Signs of the smaller star’s trail around the red supergiant are the best ...

Glen Powell's mysterious J.J. Abrams fantasy movie with Jenna Ortega just got a massive update, as the title is revealed.

Giants officials have let MLB know that if the world tour program returns to South Korea, they'd love to be part of it.

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...