Gravity. It's the law.

Jesus Diaz of Gizmodo is going to interview Adam Steltzner in 20 minutes. You probably know his unmistakable rocker face from the past few days: he’s the lead engineer of the Mars Science Laboratory Curiosity rover entry, descent and landing phase.

He also helped to design, build and test the mad “sky crane” system that has worked out so beautifully.

Hit up the link and head to the comments to leave your questions for him!