The U.S. sent a man to the moon for scientific purposes.

This was the first U.S. space station.

Many countries were involved in building the International Space Station because of its ____________.

The greatest challenge to human space flight is probably ___________.

He was the first American to orbit the earth.

Which is a biblical justification for space exploration?

What is the main purpose of the International Space Station?

I was the first female shuttle commander.

Which manned U.S. space capsule series tested launch and reentry systems?

Humans should only explore space if the ________ gained justify the ________ to the explorers.

This was the first successful space station.

This was the NASA program to take men to the moon.

Making shuttles ________ was supposed to make the Space Transportation System economical.

If we gain new knowledge, space exploration is worth any risks.

I was one of the first men to walk on the moon.

This was the main advantage of the space shuttle.