# NASA - Magnetometry 101 ljfa1R9JXWk

NASA satellites use very sensitive devices called magnetometers to measure the magnetic fields of planets. Like very sensitive compasses, these devices can measure both direction and strength of planetary magnetic fields. Learn more about how magnetometry works!\r

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- Kind: Short
- Year: 2010
- Runtime: 1 min
- By: NASA Goddard
- Genres: Space
- Archive: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:NASA_-_Magnetometry_101_ljfa1R9JXWk.webm)
- Licence or status: Public domain (as the archive states it)
- Credit: NASA Goddard
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/commons/96292364?play=1)