Original sentence: The axis remains tilted in the same direction throughout a year; however, as the Earth orbits the Sun, the hemisphere (half part of earth) tilted away from the Sun will gradually become tilted towards the Sun, and vice versa
Edited sentence: The axis remains tilted in the same direction throughout a year; however, as the Earth orbits the Sun, the hemisphere (N-S half part of earth) tilted away from the Sun will gradually become tilted towards the Sun, and vice versa