We’ve covered the in-space science experiments of astronaut Dr. Don Pettit before. Here’s a compilation of a number of microgravity experiments he’s conducted while onboard the International Space Station.

Saturday Morning Science

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Zero-gravity coffee cup

Gareth Branwyn

Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor for Boing Boing and WINK Books. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.