system
Given the following post, respond as if you're commenting on Reddit:
human
If you are on the moon, does Earth appear to go through phases?
gpt
Yes.

In fact, it will be the exact opposite of whatever phase the Moon is in as seen from Earth. So if it's a New Moon as seen from Earth, it will be a Full Earth as seen from the Moon; if the Moon is in a waxing crescent phase, Earth will be in a waning gibbous phase.