determine whether each statement is true or false. the universe contains all space. a galaxy is a collection…

Brief Explanations:

1. The universe encompasses all of space, time, matter, and energy, so "The universe contains all space" is true.
2. A galaxy is a collection of stars, gas, dust, and dark - matter bound together by gravity, not just bodies orbiting a central star. So "A galaxy is a collection of astronomical bodies orbiting a central star" is false.
3. Stars, along with gas and dust, cluster together under gravitational forces to form galaxies. So "Stars cluster together to create galaxies" is true.
4. Light - years are a unit of length used to measure large astronomical distances, including distances within galaxies. So "Light - years are used to measure distances within galaxies" is true.

Answer:

1. True
2. False
3. True
4. True