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While physicists are convinced that we could never switch gravity off, we can still explore the idea.

Without gravity, our bodies would change. After a short visit to space, astronauts lose bone mass and muscle strength, and their sense of balance changes....

Space-time is the unified fabric that comprises our universe. This revolutionary concept reveals:

• Space and time are not separate entities but a single interconnected fabric
• Massive objects create curvatures in this fabric
• What we perceive as gravity is...

Einstein's theory of general relativity says that Time can be bent, stretched and squeezed, and the four-dimensional fabric with a huge mass creates a dimple, or bending of Space-Time, causing gravity.

This effect of time dilation is proven using GPS satellite technology in space, making a...