Colin Fowler and Michael Glenn speak with Aaron Davis and Scott Stegman of MARS, who have invented a fundamentally new style of rocket engine using an air-breathing toroidal combustion chamber that has no moving parts. The rocket uses ambient fluids (air or otherwise) to achieve unprecedented efficiency in power-to-weight ratios.

Listen to "To Infinity and Beyond—Perpetual Motion Visits MARS - Episode 5" on Spreaker.