YouTube on MSN

Lacy's epic attempt to impress Mark Rober with science!

Lacy tries to impress YouTuber and former NASA engineer Mark Rober with science knowledge.
Hosted on MSN

I snuck into Mark Rober’s secret lab

We snuck into Mark Rober’s secret lab to uncover the crazy inventions and experiments he’s been working on. You won’t believe what’s hidden behind those doors. Here's what's happening at Trump-backed ...