❓ why
Why are astronauts weightless in orbit?
AstronomySpaceflight
Quick Answer
They are not outside Earth’s gravity; they are in continuous free fall around Earth, which creates the feeling of weightlessness.
The Full Story
At the altitude of the International Space Station, gravity is still strong, only slightly weaker than at Earth’s surface. Astronauts feel weightless because the station and everything inside it are falling around Earth at the same rate, so there is no supporting force from a floor. This is called microgravity, not zero gravity. The ISS orbits at about 400 km altitude, completing one trip around Earth roughly every 90 minutes.
Key Facts
1.ISS altitude: about 400 km
2.One orbit takes about 90 minutes
3.Correct term is microgravity
YouTube Angle
Suggested video title for this topic:
"Why astronauts float when gravity is still there."