If Gravity in Space Is 90% as Strong as on Earth, Why Do Astronauts Float?

If gravity in space is still about 90% as strong as it is on the ground, why do astronauts float around the International Space Station? In this video, we explain in simple words why "zero gravity" is a myth — and how astronauts, their coffee, and the entire ISS are actually in a permanent state of freefall around Earth. Whether you're a curious student, a space enthusiast, or someone who has always wondered how orbits really work, this simple breakdown of microgravity, Newton's cannonball, and orbital speed will finally make it click. CHAPTERS: 0:00 – Why Astronauts Float (It's Not Zero Gravity) 0:23 – The Broken Elevator Thought Experiment 0:53 – Gravity Is Still 90% Up at the ISS 1:14 – Why "Zero Gravity" Is a Myth: Microgravity 1:27 – Falling Sideways: Newton's Cannonball 2:03 – 17,500 mph: Orbiting Is Constant Falling 2:36 – Why Everything Inside the ISS Floats 3:08 – What Microgravity Does to the Body 3:47 – Astronauts Age Slower: Time Dilation WATCH NEXT: ▶ Time Dilation – Einstein's Theory of Relativity – https://youtu.be/yuD34tEpRFw ▶ How Do Astronauts Get Oxygen Aboard the ISS? – https://youtu.be/I_cOqxZqjFU ▶ What Exactly is Spacetime? – https://youtu.be/3khY_bwf5FY KEY TOPICS COVERED: • Why astronauts float even though gravity is ~90% as strong at ISS altitude • The difference between "zero gravity" and microgravity • How freefall makes you feel weightless (the broken-elevator analogy) • Newton's cannonball thought experiment and how orbit works • The ISS orbital speed of 17,500 mph (28,000 km/h) — falling but always missing Earth • Why everything inside the station floats together • Bone density and muscle loss in microgravity, and how astronauts fight it • Time dilation: why astronauts age slightly slower than people on Earth #Astronauts #ISS #Microgravity #ZeroGravity #SpaceScience #Physics REFERENCES: https://pmc.ncbi.nlm.nih.gov/articles/PMC8125950/ https://www.nasa.gov/learning-resources/for-kids-and-students/what-is-microgravity-grades-5-8/ https://www.usgs.gov/water-science-school/science/water-space-how-does-water-behave-outer-space https://www.smithsonianmag.com/smithsonian-institution/why-do-astronauts-space-station-float-180956965/ SUBSCRIBE for more science explainers! https://www.youtube.com/channel/UCcN3IuIAR6Fn74FWMQf6lFA?sub_confirmation=1 Follow us: Twitter: https://twitter.com/abc_science Facebook: https://facebook.com/sciabc Instagram: https://www.instagram.com/scienceabcofficial/ Website: https://www.scienceabc.com Copyright Science ABC. For licensing inquiries: admin@scienceabc.com