At the time of a full moon, an astronaut on the Moon looking at Earth would see a
A) full Earth moon.
B) first-quarter Earth moon.
C) last-quarter Earth moon.
D) new Earth moon.

Question

Quizplus · Accepted Answer

When it's a full moon on Earth, an astronaut on the Moon would see the Earth in the opposite phase, which is a new Earth moon, because the side of the Earth facing the Moon would not be illuminated by the Sun.

At the Time of a Full Moon, an Astronaut on the Moon