How to Weigh a Planet

Check out the Rocks Box store and subscribe here: https://complexly.info/rocks From hanging a plumbob near a Scottish mountain, to watching a starless world act like a planet-sized lens from two vantage points at once, scientists have devised a lot of ways to calculate a planet's mass. Hosted by: Reid Reimers (he/him) ---------- Support us for $8/month on Patreon and keep SciShow going! https://www.patreon.com/scishow Or support us directly: https://complexly.com/support Join our SciShow email list to get the latest news and highlights: https://mailchi.mp/scishow/email ---------- Huge thanks g