Original sentence: As it is the Sun which illuminates the Moon - and both the Sun and the Earth are always located in the plane of the ecliptic - the Moon is sometimes illumnated from above and sometimes from below, allowing us to see some of the lunar surface beyond the poles
Edited sentence: As it is the Sun which illuminates the Moon - and both the Sun and the Earth are always located in the plane of the ecliptic - the Moon is sometimes illuminated from above and sometimes from below, allowing us to see some of the lunar surface beyond the poles