A spectacular crescent Earth rising over the Moon (Apollo 14 image)

NASA’s Astronomy Picture of the Day (APOD) for February 1, 2020: a crescent Earth rising over the Moon, seen from Apollo 14 on February 6, 1971. This photo is not as famous as the Apollo 8 Earthrise, or the Blue Marble, but it has such an eerie beauty.

Earth’s oldest rock has been found… on the Moon!

According to research published in the journal Earth and Planetary Science Letters, Earth’s oldest rock (which is 4.1 billion years old) has been found in an Apollo 14 sample from the Moon. If confirmed, it’s an amazing discovery.