Inside a spaceship, astronauts drift around like balloons. Their hair floats. Their water turns into wobbly bubbles!
Most people think it's because there is no gravity in space.
That is one of the most famous mix-ups in all of science — and by the end of this Spark, you will know the real answer. Tap Next to begin! 👉
Some space facts are surprising. Tap a card to flip it open.
Gravity is the invisible pull that the Earth gives to every object. Drop a ball, a pencil, or even an apple — they all fall towards the ground.
In space, with no air to slow things, even a feather and an apple fall together at the exact same speed. Gravity treats everything fairly!
Imagine throwing a ball really, REALLY fast — so fast that as it falls, the round Earth curves away beneath it. The ball keeps missing the ground and circles forever! That's an orbit.
Throw speed: slow
Slide to find the "just right" speed and launch. Too slow = it crashes. Just right = it floats around forever!
The space station and the astronauts inside it are both falling around the Earth at the same speed, side by side.
Try the lift trick: If a lift dropped fast and you dropped with it, you'd feel light and floaty for a moment — same idea!
Scientists call this special floaty feeling "free fall".
An astronaut floats inside the space station. Why? Pick the best answer.
"There is no gravity where the space station flies."
Hint: remember the very first myth card you flipped open. 😉
Astronauts float because they are falling around the Earth — not because gravity has disappeared.
Remember these three big ideas:
Amazing work, young scientist! 🚀 Now you know more than most grown-ups!