1.
A spot in space with gravity so strong that nothing, not even light, can escape.
2.
A huge explosion that happens when a big star runs out of energy and collapses.
4.
A change in light that shows an object in space is moving away from us.
5.
A big group of stars, gas, and dust held together by gravity.
6.
A cloud of gas and dust in space where new stars can be born.
7.
A ball of ice and rock that travels through space and has a glowing tail when near the Sun.
8.
The path an object takes as it moves around another object.
9.
A tool that helps us see faraway objects in space by making them look bigger.
10.
The force that pulls things together; it keeps planets in orbit and our feet on the ground.
