In tight quarters, Artemis II astronauts stay fit with the flywheel

NPR | By Katia Riddle

Published April 8, 2026 at 5:47 PM EDT

The human body isn't meant to exist without gravity. The astronauts aboard Artemis II are combatting potential physiological damage using an elegantly engineered exercise machine called the flywheel.

Katia Riddle

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