In the past, people used to think that heavier objects can fall faster than lighter object, but, it was wrong. Common sense can be a bad guide for you in physics, so we need to break our common sense, and face the truth.
Do you believe that an object can appear in two places at once?
Some scientists believe that there are parallel universe, which mean every decision has happened, the same thing happens at two places at once! If you have studies quantum mechanics before, you probably know this might be true.
Do you believe that an object actually bends the space to make other matters move toward it?
That is Einstein's Theory of General Relativity, and Newton's law of Gravity doesn't work when an object is moving nearly the speed of light.
Do you believe that a movement of an object from here can affect straightly an object far away, even there is no space between.
That has been a question that even confused Einstein. It is also called the tanglement, and Einstein even called it "Spooky action". It is two particles that are produced the same, has been separated. One is on the moon, one is on the earth. When you measure which way does a particle spin, you can immediately know what does the other particle spins on moon. For example, if you know that this particle spins clockwise, you will know immediately that the other one, which is on the moon, spins counterclockwise. Einstein had believed that this is like a pair of glove, but later scientists proved that he is wrong.