what if gravity doesn't exist, what will happen to the planets
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Without the force of gravity to hold it together, the intense pressures at its core would cause it to burst open in a titanic explosion. The same thing would happen to all the other stars in the Universe. ... Eventually there would be no clumps of matter, like stars or planets, anywhere in the Universe.There's nothing like a nasty cold to make you appreciate good health. The same goes for the state of the universe: Tweaking just one of the fundamental physical laws or constants, normally perfectly "fine-tuned" at the right values to allow stars, planets, atoms and life as we know it to flourish, could turn things very different — quite unpleasantly so. Imagining such a "bizarro" universe may heighten your appreciation for the norm.
Consider, for example, how horrifically unrecognizable the universe would be if it had formed with just three fundamental forces instead of four — if electromagnetism, the strong interaction and the weak interaction were all exactly as we know them, but that fourth force, the one that pulled together a bunch of rocks to form Earth and still keeps your feet firmly planted on the planet, never existed. What if there was no force of gravity?
According to James Overduin, a physicist at Towson University in Maryland who specializes in gravitation, a universe without gravity would be "completely flat and featureless." Overduin explained that gravity is just another term for the curvature of space-time — how steep or shallow the fabric of the universe is in a given place (and thus how likely objects are to fall toward the source of curvature). Just as a bowling ball placed on a trampoline curves its surface, it is the presence of matter and energy that cause space-time to curve. So, if the universe can't curve (because gravity doesn't exist), then there can be no matter or energy within it.
"This would be a boring universe," Overduin told Life's Little Mysteries, a sister site to LiveScience.
"Source: BBC, livescience.com"
I have added source.... because this information is only presented by me but gathered by them... So I give them credit
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nothing exist inside earth.
earth will have massive Titanic explosion.
no atmosphere, atmospheric pressure,air ,nothing
what should do that time: tell god I'm going to meet you soon