In celebration of Free RPG Day, gamers can grab a free preview adventure from the upcoming Marvel Multiverse RPG Avengers ...

NPR's Scott Simon talks to climate scientist Kate Marvel about her new book, "Human Nature." It's a look at our changing planet through the lens of nine very human emotions.

The Marvel Cinematic Universe is no stranger to powerful villains. Thanos wipes out half of the universe’s population for five years, and Ultron sends an entire city careening toward Earth ...