Video · The Gravity of the Situation: Crash Course Astronomy #7 TwitterShare on Facebook1K 785 775 views Crash Course - February 26, 2015 Science Crash Course Gravity More Videos Volcanoes Explained: Crash Course Geology #13 Science · 6 days ago The Deepest Point in the World: Crash Course Geology #12 Science · 2 weeks ago How Do Mountains Form?: Crash Course Geology #11 Science · 3 weeks ago What is Plate Tectonics: Crash Course Geology #10 Science · June 25, 2026 What is Plate Tectonics: Crash Course Geology #10 Science · June 25, 2026 How Water Shapes the Land: Crash Course Geology #9 Science · June 18, 2026 How Water Shapes the Land: Crash Course Geology #9 Science · June 18, 2026 Who Will Make It To The Finish!? Red Bull Soapbox Race Denver LIVE REPLAY Xtrem · June 14, 2026