Quote Originally Posted by becomingagodo View Post
it wouldnt.

gravity is determined by mass of object not it speed. how would being faster make you invisible unless you run at the speed of light which is impossible quantum and einstein physics if you our made out of mass particle. plus if you were truly invisible your eye would be invisible so light could not be absorbed by your eye they will pass straight through you.

you gave me the idea for another topic thanks
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Most of the extra-solar planets we've discovered so far are hot-Jupiters, or massive Jupiter like stars in extremely short orbits. So it is very possible for a planet to have 2-3 times the mass of Jupiter and be very close to its parent star.

I guess it's possible for them to be invisible to us, for example if they were made out of time (whatever time particles are) or dark-energy etc etc. They'd also be a lot more powerful than us. Great idea to think about, but you'd need a lot of education to get anywhere with that.