Astronauts float in zero gravity.

Meaning: Astronauts move and stay in the air inside the spaceship because there is no gravity in space.

Choice of Words: Float means to move or drift smoothly in the air or water without touching anything. Zero means nothing, and gravity is the force that pulls objects towards the Earth. So, astronauts float because there is no gravity in space.

Alternative Expressions

Astronauts are weightless in space.

Meaning: This means that astronauts feel like they are floating because there is no gravity pulling them down. It's like when you jump up in the air and for a moment you feel like you're floating before you come back down.

Choice of Words: Astronauts are people who travel to space in a spacecraft. Weightless means having no weight or not being pulled down by gravity. Space is the vast area beyond Earth's atmosphere. When you put these words together, the sentence means that astronauts don't have any weight or aren't pulled down by gravity when they are in space.

Astronauts can fly in space.

Meaning: This means that astronauts can move around in space without having to walk or use a vehicle. It's like when you see a bird flying in the sky, but instead of a bird, it's an astronaut.

Choice of Words: Astronauts are people who travel to space in a spacecraft. Fly means to move or travel through the air. Space is the vast area beyond Earth's atmosphere. When you put these words together, the sentence means that astronauts can move or travel through the air in space.

Related Expressions