Did you know astronauts use jump rope–style training to stay fit in space? In zero gravity, their bodies lose muscle, bone density, and heart strength way faster than we do here on Earth. So they have to train in ways that keep their bones strong, muscles active, and endurance up. That rhythmic impact full-body cardio demand? Yep… just like jump rope. So if it’s powerful enough to help astronauts fight muscle and bone loss in space… imagine what it can do for us here at home 💪🏾 Sometimes the m

Ask a NASA astronomer! Why is there zero gravity in space?

ISS astronauts on life in space

Life aboard the International Space Station