6 myths
A black hole’s gravity is the same as any other object of the same mass. Replace the Sun with one and Earth would keep orbiting normally. They even blow matter back out.
Your body holds together — skin and blood vessels are strong enough. Vacuum kills by suffocation, not explosion, and you’d stay conscious for about 9 to 15 seconds.
The Sun is white — it emits all visible colors at once, and our atmosphere scatters the blue away, which is what makes it look yellow from the ground.
Earth is round, but not a perfect sphere; it's an oblate spheroid, slightly flattened at the poles and bulging at the equator due to its spin.
Astronauts have confirmed the Great Wall isn't visible to the naked eye from orbit. It's too narrow and blends into the landscape.
there's plenty of gravity in space. Astronauts float because they're falling, not because gravity is gone.
