SciShow Space: Cruithne, the Asteroid With a Horseshoe Orbit

Teacher or professor: SciShow Space
Subject: Astronomy, Astronautics, Astrophysics
Content of the Lesson: Go to https://NordVPN.com/SPACE to get 75% off a 3 year plan and use code SPACE to get an additional month for free. There’s a small asteroid that appears to orbit Earth in a horseshoe shape. Sometimes referred to as Earth’s second moon, but it's orbit is much weirder than that. Host: Reid Reimers SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Adam Brainard, Greg, Alex Hackman, Sam Lutfi, D.A. Noe, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.nature.com/articles/42662 http://theconversation.com/earths-other-moon-and-its-crazy-orbit-could-reveal-mysteries-of-the-solar-system-38010 https://www.businessinsider.com.au/cruithne-is-not-earths-second-moon-2015-3?r=US&IR=T https://futurism.com/a-day-on-cruithne-earths-second-moon https://earthsky.org/space/does-earth-have-a-second-moon http://www.astro.uwo.ca/~wiegert/3753/3753.html https://physicsworld.com/a/earths-second-moon-target-of-proposed-mission/ ------ Images: https://svs.gsfc.nasa.gov/11935 https://en.wikipedia.org/wiki/File:Horseshoe_orbit_of_Cruithne_from_the_perspective_of_Earth.gif https://en.wikipedia.org/wiki/File:Orbits_of_Cruithne_and_Earth.gif https://www.spacetelescope.org/videos/hubblecast52f/ https://en.wikipedia.org/wiki/File:Cruithne.jpg https://commons.wikimedia.org/wiki/File:Animation_of_3753_Cruithne_orbit.gif https://en.wikipedia.org/wiki/File:Animation_of_Epimetheus_orbit_-_Rotating_reference_frame.gif https://www.eso.org/public/videos/esocast82b/ https://www.istockphoto.com/vector/cute-cartoon-earth-with-moon-gm517518868-89525783


Click here to view video on YouTube.