1
measure of star brightness based on the amount of light it actually gives off
2
a gigantic antenna on Earth designed to receive signals from space
3
the condition of very low gravity
4
the remains of a massive star that has exploded
5
cool dark body that is the final stage in the life cycle of low-mass star
6
a very small dying star
7
a very large old reddish star with almost no fuel
8
an exploding star
9
large planet made up mostly of liquids and gases
10
the sum of everything that exists
