This would mean that the same side of Earth is always facing the Sun. Therefore, it takes Earth the same amount of time to rotate around its own axis as it does to orbit the Sun. Because of the tilt of Earth's axis only one constant hemisphere would be facing the Sun. Therefore, there would be no day or night changes. One side of Earth would get constant heat and the other side would be very cold. Right?? But, what would happen to the Sun's path over a 24 hour period in the hemisphere that is facing the Sun? Would the Sun never set, instead just follow a circular path in the sky, or would it remain at one point in the sky the whole day? Also would there be equinoxes or solstices?