Public domain
Free-Air Gravity Map of the Moon
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
If the Moon were a perfectly smooth sphere of uniform density, the gravity map would be a single, featureless color, indicating that the force of gravity at a given elevation was the same everywhere. But like other rocky bodies in the solar system, including Earth, the Moon has both a bumpy surface and a lumpy interior. Spacecraft in orbit around the Moon experience slight variations in gravity caused by both of these irregularities.
NASA Image and Video Library’s own descriptionCredit lineFree-Air Gravity Map of the Moon. NASA/GSFC, 2017-12-08. Public domain. ID: GSFC_20171208_Archive_e001557.
