Solar System and Space Travel

What is the force of attraction that occurs between the sun and planets in our solar system?

The moon orbits the Earth and the Earth orbits the Sun.

What spacecraft is orbiting the Earth right now?

Which planets have more moons due to their large size?

What controls the movement of the solar system?

What causes a comet's tail to "glow"?

Rocks gathered during missions to the Moon

A smaller system within our larger solar system is

More spacecraft will be sent to explore ___________ in the next several decades.

Fuel to launch a spacecraft on Earth is _____________ fuel to launch same spacecraft on moon.

It takes 1 year to complete an orbit of the Earth around the Sun.  What is this called?

What was the first man made (artificial) satellite?

Thermal tiles on Space Shuttle protect it from burning up as it returns to Earth. Why?

The first United States manned spacecraft to orbit the earth was

What object glows as it enters the Earth's atmosphere?

Which part of a spacecraft produce the force required to overcome gravity of the Earth?

Which object in our solar system has the greatest gravity?

What  word describes a planet spinning on an axis?

The shape of a comet's orbit is

The Sun orbits Earth and the moon orbits the Earth

The moon orbits the Sun as the Earth orbits the moon.

What type of rock is formed by a volcano?

What gas is the sun mostly composed of?

What scientist discovered 4 of Jupiter's moons?