Spaceships are not like your regular cars running out of fuel on the highway. Space is like a friction-free paradise! Unlike ships in water that need a constant push to keep going, spaceships have got it all figured out. Once those engines are turned off, their momentum takes over and propels them forward at a steady pace. It’s a cosmic roller coaster with no brakes. But does it mean spaceships never run out of gas? Learn more about your ad choices. Visit megaphone.fm/adchoices