The second one is best. Gravity is an attractive force that acts between all objects, whether they're in contact or not.
The planet would stay in the same orbit but start revolving faster.
(Its year would get shorter.)
<span>The reason that things look wavy in the heat over a hot grill or stove is that the air temperature is not stable. Hot air naturally rises, so as air comes off the hot surface, it rises for a bit before rapidly cooling and sinking to be heated again. This constant mixing of hot and cool air produces vibration. This vibration affects how we see the light moving through the air, making it look wavy.</span>
