Earth orbit axis rotation tilt [odd one out] [words and pictures]

the angle of tilt the axis the Moon orbiting the Earth anti-clockwise the Earth orbiting the Sun the Earth in collision with Theia our Solar System rotation of Earth without a tilt

Within the grid there are 7 pairs of pictures and words and one ODD ONE OUT. Click on the pictures and words which you think are pairs to get rid of them. The one word or picture remaining will be the one you have chosen as the ODD ONE OUT.