the force that pulls things toward the ground
gravity
the area where people live
neighborhood
the study of numbers and how to solve problems with them
Mathematics
tools used to see faraway objects, like stars and planets
Telescopes
to go to new places and learn about them
explore
a strong person or thing that has a lot of energy or power
powerhouse
The area outside earth, where the stars and planets are
Space
Important tasks or trips
Missions
To change something so much that it is completely different
Revolutionize
A power you can’t see but can feel
Invisible force
Very, very old
Ancient
A small rock that floats in space
Asteroid
Large groups of stars and planets
Galaxies
Small planets that are too small to be called regular planets
Dwarf planets
