The United States federal agency in charge of spaceflight

The space station that has been built by many nations

The reusable spacecraft that have been launched into Earth's orbit since 1981

The first astronaut on the moon

The U.S. space program that landed astronauts on the moon

The spinning of Earth around its axis

Earth does this almost exactly once around the Sun each year

The force that pulls Earth into orbit around the Sun

The shape of Earth's orbit?

It occurs when the Moon passes through Earth's shadow during a full moon

The phases when we see the whole lighted side of the Moon

A round pit formed by the impact of an object

How long it takes the Moon to revolve around Earth

The phase in which half the lighted side of the moon is visible

The decreasing of the visible amount of the Moon's lighted surface after full moon

Most of these rocky bodies are located in a belt between Mars and Jupiter

The part of a meteor that doesn't burn up in the atmosphere and strikes Earth's surface

An Italian astronomer who discovered Jupiter's four largest moons

The combining of nuclei that gives the Sun its energy

The top layer of the Sun's atmosphere

A tool used to separate starlight into its colors

A cloud of gas an ddust in which a star forms

The actual brightness of a star

The galaxy to which our solar system belongs

The theory that says the universe began from a small area in space and has been expanding ever since

What is NASA?
What is the International Space Station?
What is the space shuttle?
Who is Neil Armstrong?
What is Apollo?
What is rotation?
What is revolve?
What is gravity?
What is ellipse/oval?
What is a lunar eclipse?
What is full?
What is a crater?
What is 27.3 days?
What is a quarter?
What is waning?
What are asteroids?
What is a meteorite?
Who is Galileo?
What is nuclear fusion?
What is the corona?
What is a spectroscope?
What is a nebula?
What is absolute magnitude?
What is Milky Way?
What is the Big Bang Theory?