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Now, I know that it is theoretically possible for negative mass to exist and for negative energy to exist. But any gravity would act on all objects and all energy, no matter if that mass and energy is positive or negative. So negative gravity would for example, pull a person upwards. Now yes, I realize that there already is a force that comes from the interaction of 2 masses that pulls everything away from 1 mass and towards the other mass. That is the tidal force. As an example, if a miniature black hole were in the core of a moon and the moon was somehow stable, as the moon's orbit gets closer to the planet, the tidal forces would become so strong that it overcomes the planet's gravity and everything gets pulled towards the moon.
That is basically like gravity being negative except that it is normally extremely small. And it isn't a true gravity but rather the force that arises from 2 gravitational fields interacting.
A true negative gravity would require just 1 source of gravity to achieve the same effects as the tidal force, pulling everything away from a mass. Negative gravity would mean that launching into space would require no more energy than the gravitational potential energy of the spacecraft . Of course, if gravity were negative the spacecraft couldn't be formed in the first place and any astronomical object would immediately be blown apart if there were negative gravity but is it at least hypothetically possible to have gravity be negative? Could dark energy be this negative gravity acting on the entire universe?
That is basically like gravity being negative except that it is normally extremely small. And it isn't a true gravity but rather the force that arises from 2 gravitational fields interacting.
A true negative gravity would require just 1 source of gravity to achieve the same effects as the tidal force, pulling everything away from a mass. Negative gravity would mean that launching into space would require no more energy than the gravitational potential energy of the spacecraft . Of course, if gravity were negative the spacecraft couldn't be formed in the first place and any astronomical object would immediately be blown apart if there were negative gravity but is it at least hypothetically possible to have gravity be negative? Could dark energy be this negative gravity acting on the entire universe?