This is a nickname for comets because they are made of ice and rocky dust.
These are smaller rocks that usually burn up in the atmosphere of earth.
This is a nickname for a meteor as it burns up in our atmosphere. They only last for a few seconds as they burn and break apart.
This is bigger than a moon, but smaller than a star.
This is a giant collection of solar systems and stars...
This is a giant cloud of gas and dust. Stars are born here-
This is the collection of all matter and space! It's the most massive object of all!
This is more massive than a solar system but less massive than the universe.
This is the force that governs ALL motion in the universe:
This is the unit of distance that we use to measure something like the width of a galaxy-
The measurement '1 AU' means...
I would measure the distance from the Sun to Proxima Centauri in -
I would measure the distance from Houston to San Antonio in -
I would measure the distance from Jupiter to Earth in -
A nebula is a huge cloud of gas where ____________ are born.