On Sunday, former NASA engineer-turned-YouTuber Mark Rober shared the spoils of his quarantine time-killing with a 21-minute ...

What's the most destructive substance on Earth? Lava's the reigning champ - but how do lasers stack up? Mark and his friends are about to find out. Mark ups his backyard obstacle course game to keep ...

From Ninja Warrior courses built for squirrels to glitter bombs built for porch pirates, Mark Rober is never bored and now he's helping your kids stay entertained this summer. With summer camp costs ...