How does a mass create gravity?
Every mass—be it an apple or the sun—distorts space and time, explains Physics and Astronomy professor Serge Rudaz. Gravity, he says, is the manifestation of that distortion.
It’s taken centuries for scientists to fit together the pieces of the gravity puzzle, Rudaz says. In the 17th Century Galileo Galilei put the first piece in place when he discovered that, if you take air resistance out of the equation, all objects fall at the same rate.