A symbol * that is used in printed text, sometimes to tell someone to read a note that can be found at the bottom of the page.

A minor planet; one of thousands of small bodies that circle around the sun.

A person who travels into outer space in a spacecraft.

A person who studies stars, planets, and other objects in outer space.

extremely large; of or relating to astronomy

Jason was confused when he saw ________ in his book. He didn't know it meant to look at the bottom of the page for notes.

It is a scary to think that an _______ could hit the earth.

When I was a kid I always told my parents I wanted to become an ________ because I wanted to ride in a spacecraft.

The ________ helped NASA to discover a new dwarf planet in our solar system.

My credit card bill was _______ in the month of December from buying so many Christmas presents.