Who was the third person to walk on the moon?

What satellite series was known as "fellow traveler"?

What is the name for the Sun's outer-most atmosphere?

What rocket launched the Apollo program?

What astrological sign starts on January 21st?

What is Pluto's period of revolution around the sun?

Who was the first U.S. woman astronaut?

What must a meteor do in order to become a meteorite?

Mariner IV sent the first pictures of which planet back to earth?

What is the constellation known as the Ram also called?

What is the sun mostly made up of?

What is seventh planet in order of distance from the sun?

What is the place where projectors are used to show the night sky?

Which Apollo mission was launched on April 11, 1970?

How many earth days does it take for Mercury to circle the Sun?

What was the name of the first manned space vehicle?

How many astronauts manned each Apollo mission?

What star, next to the Sun, is nearest to Earth?

What was the element mercury named after?

What is the second planet in distance from the sun?

What is a meteoroid called if it lands on the Earth's surface?

What is a huge exploding star radiating as much energy as the sun would over about 10 billion years?

How many moons does Earth have?

Where on the moon did people first land a spacecraft?

By what name is a quasi-stellar radio source better known?