From how to French brain or play the guitar to how to unclog a sing or perform CPR, you can learn all kinds of useful skills on YouTube. We at Mental Floss are always eager to learn new things and ...

CHENNAI, India — Now that artificial intelligence has mastered almost everything we do online, it needs help learning how we physically move around in the real world. A growing global army of trainers ...

Yahoo Entertainment is your source for the latest TV, movies, music, and celebrity news, including interviews, trailers, photos, and first looks.

Editor's note: This article was originally published in 2017. We’re republishing it now as a resource for photographers looking for insight into capturing the Aurora during the current auroral event.