The scholar and Christian convert Ayaan Hirsi Ali wrote recently of her pleasure in experiencing Christmas as a person new to ...

NPR's Juana Summers talks with Jessica Yung and Emily Kwong of Short Wave about the physics of hula hooping, why some vaccines last longer than others, and a few moon launches to watch for in 2025.

Have you ever wondered why most disinfectants indicate they kill 99.9% or 99.99% of germs, but never promise to wipe out all of them? Perhaps the thought has crossed your mind mid-way through ...

A fever, therefore, makes it harder for those germs to survive. “When you get a bacterial or viral infection, your body’s defenses kick in and your temperature rises as your immune system ...