According to NASA, Microgravity is the condition in which people or objects appear to be weightless.
- The effects of microgravity can be seen when astronauts and objects float in space. In microgravity, astronauts can float in their spacecraft – or outside, on a spacewalk.
- Heavy objects move around easily.
- Microgravity is sometimes called “zero gravity,” but this is misleading, says NASA.
Gravity
- Gravity causes every object to pull every other object toward it. Some people think that there is no gravity in space. In fact, a small amount of gravity can be found everywhere in space.
- Gravity is what holds the moon in orbit around Earth. Gravity causes Earth to orbit the sun. It keeps the sun in place in the Milky Way galaxy.
- Gravity, however, does become weaker with distance. It is possible for a spacecraft to go far enough from Earth that a person inside would feel very little gravity. But this is not why things float on a spacecraft in orbit.
