About this episode
Rocket engines have to push REALLY hard against Earth’s gravity to get up off the ground. The rockets that NASA sends into space weigh over a million pounds! That is a LOT to try to lift into the air! So what kind of fuel do those powerful rocket engines use? We asked NASA scientist Erik Axdahl to help us find the answer. Got a question orbiting your mind? Send it to us at BrainsOn.org/contact , and we’ll launch an answer your way. See omnystudio.com/listener for privacy information.