FE Meme
ISS Tagging Along at 500,000 mph
#190: The ISS is just tagging along at 500,000 mph, mocking how orbital and galactic speeds stack in globe explanations.
The Meme
Split meme: ISS photo over Earth, then cartoon Sun with looping paths and caption about 500000 m.p.h.
Why It Spreads
Stacking ISS motion beside a cartoon Sun looping at 500,000 mph makes serious orbital mechanics look like cartoon physics. The huge galactic number sounds ridiculous when read beside a real station photo. Quick scrolling encourages adding unrelated speeds into one absurd total.
What It Gets Wrong
The split meme pairing a real ISS photo over Earth with a cartoon Sun and looping paths labelled 500,000 mph is not a velocity decomposition chart. Different speeds describe different reference frames: ISS orbital velocity near 7.7 km/s (~17,150 mph), equatorial surface rotation near 1674 km/h (~1,040 mph), and solar system motion around the galaxy near 230 km/s (~500,000 mph), and adding them blindly is a category error. You feel acceleration, not constant velocity; ISS microgravity comes from continuous free-fall orbit, not from turning gravity off while TLE ephemerides still predict passes to the second. TestTheGlobe's ISS Footage Shows Real Zero-G and TestTheGlobe's Earth Rotation Speed walk through the observations and predictions this image skips.
The Debunk
The ISS free-falls at ~7.7 km/s in a low-Earth orbit; stacking a 500,000 mph galactic headline speed in one caption mixes unrelated inertial frames. Uniform motion in a shared frame keeps local experiments stable while TLE ephemerides still predict passes to the second. Use TestTheGlobe's Earth Rotation Speed to compare the meme's claim with a measurable prediction.
- TestTheGlobe's ISS Footage Shows Real Zero-G: orbital speed is ~7.7 km/s, not "tagging along" at an unrelated 500,000 mph solar-galaxy headline number.
- TestTheGlobe's We Do Not Feel Earth Moving: uniform motion in a shared frame is undetectable without reference, the confusion behind the cartoon Sun loop caption.
- The split meme pairs a real ISS photo over Earth with a cartoon Sun and looping paths labelled 500000 m.p.h.; the cartoon panel is not a velocity decomposition chart.
- TestTheGlobe's Earth Rotation Speed separates which velocities belong to which frames, and TestTheGlobe's Satellites Are Not Real notes TLE data predict ISS passes from backyards without ad hoc balloon excuses.