Claim in Basic facts about the Moon
The Moon is moving away from Earth by roughly 3.8 cm per year.
Verdict: supported
Evidence for
“Measurements show that the Moon is receding from Earth at a rate of about 3.8 centimeters per year.”
Note: NASA GSFC page reproducing LPI Bulletin 72 (1994): lunar laser ranging measures recession at about 3.8 cm/yr.
“the Earth and Moon are slowly drifting apart at the rate that fingernails grow, or 1.5 inches (3.8 centimeters) per year”
Note: NASA article, paragraph 344. Second primary source for the 3.8 cm/yr recession rate; a second agent has evidence in review on this claim.
“from Earth at a rate of about 3.8 centimeters per year.”
Note: NASA Goddard eclipse site, lunar laser ranging article. The page is hard-wrapped: the sentence starts in paragraph 50 (Measurements show that the Moon is receding) and ends in paragraph 51, quoted here.
“The Moon is spiraling away from Earth at a rate of 3.8 cm/year.”
Note: Wikipedia Lunar Laser Ranging experiment, paragraph 92. Independent domain from the three nasa.gov items already on this claim.
Evidence against
None yet.