In a scientific face-off, Mark goes head-to-head with NileRed and Kevin the Backyard Scientist to find out which is more destructive: acid or lava. To stop the sneaky squirrels from raiding his bird ...

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 ...

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 ...