Artemis II astronauts' workout routine on their journey around the Moon

How do astronauts stay fit on the way to the Moon? During the 10-day Artemis II mission in April, the Orion crew spent about 30 minutes a day exercising with the compact Flywheel device, designed specifically for deep-space travel. About the size of a carry-on suitcase and weighing just 30 pounds, the power-free system delivers both aerobic and resistive workouts with loads up to 400 pounds using a simple yo-yo-like mechanism. The lightweight exercise equipment helps maintain astronaut health and muscle strength inside Orion, where space and mass are limited and traditional gym machines aren't an option. Video credit: NASA.