Astronomy Crossword Puzzle (Culminating Project)

What is the hottest plant in the Solar System?
What is the very beginning of the universe?
What is the largest planet?
A group of stars with a recognizing pattern.
What is the coldest planet?
What planet used to be part of the Solar System?
Pluto is smaller than what country on Earth?
What is an unusual way that Uranus rotates?
What is Saturn's most prominent trait?
What planet gets visited by astronauts the most?
The galaxy that contains our Solar System.
Densest planet in our Solar System.
A small body moving in the Solar System that would become a meteor if it entered the Earth's atmosphere.
A fixed luminous point in the night sky. It is also bright.
An icy body that releases gas or dust. They are often compared to dirty snowballs.
A star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of it's mass.
What is another term to describe outer planets?
What is another term to describe inner planets?
What is the most prominent feature in Jupiter's atmosphere called?
What is the most prominent feature on Neptune?
What is the Earth's only natural permanent satellite?
What space region sucks anything/anyone in and never returns?
How many planets are there in our Solar System?