Fact or story?
Mark each sentence. A measured fact was checked. A theory is still a test. A story is not a fact.
The Sun is a star.
Earth orbits the Sun.
A light-year is a distance, not a time.
Rockets can work in space because they carry their own gas to push.
People walked on the Moon in 1969.
There may be life we have not met.
Some icy moons may hide oceans under the ice.
A wormhole or a warp drive would be a new kind of travel.
A chariot pulls the Sun across the sky.
The Moon is made of cheese.
Earth rides on the back of a giant animal.
Spaceships fly faster than light.