The word zero is very misleading here.
Nasa gravity free room.
Objects with more mass have more gravity.
See our zero g which puts test payloads into a free fall for 5 seconds dropping over 400 feet.
This is accomplished by allowing the experiment vehicle to free fall in a vacuum a distance of 432 feet 132 m.
So the closer objects are to each other the stronger their gravitational pull is.
Watch the visualization for a tour of earth s gravity field.
The facility is used by investigators from around the world to study the effects of microgravity on physical phenomena such as combustion fluid physics biotechnology and materials science.
Anything that has mass also has gravity.
The facility can provide a microgravity test environment for a fraction of the cost conducting an experiment in space and provides the best gravity levels of any of nasa s ground based low gravity facilities.
Since 2002 nasa s twin grace satellites have mapped earth s gravity the attractive force exerted by its mass enabling scientists to see these differences and monitor how they change over time.
Explore nasa s drop zone zero gravity research facility nasa.
Gravity also gets weaker with distance.
All its mass makes a combined gravitational pull on all the mass in your body.
The question is how does nasa achieve this.
It is the gravity in space that keeps neptune rotating around the sun and what keeps the sun glued to our galaxy.