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With a good __________, you can see craters on the _______.
Telescope / moon
Do you know the order of the ____________ in our _________ ___________?
Planets / solar system
The ___________ is the center of our ___________ ______________.
sun / solar system
When you travel in a ______________, can you see the ____________ in the __________?
Spaceship / stars / sky
The Earth's _____________ makes it impossible to float around.
gravity
We saw a large __________ through the _____________
Meteor / telescope
NASA is going to send a group of _____________ into space.
astronauts
______________ continue to discover new ___________.
Astronomers / stars
The ___________ is a satellite orbiting the _____________.
moon / Earth
Without a ____________ on your body, you can't move around in space.
Spacesuit
NASA is planning a ____________ ___________ for humans on Mars.
space colony
