References

These science fiction technologies have revolutionized humanity.

Al Worden was the first astronaut to perform a spacewalk in deep space.

Has there ever been life on Mars?

Now we can stare directly at the sun.

Reference article: Facts about NASA's Armstrong Flight Research Center.

She was the human computer who helped land humans on the moon.

Reference article: Facts about the women highlighted in "Hidden Figures."

Solar eclipses are one of nature’s most spectacular events.

From Legos to pizza, how did they end up in space?

With supersonic wind tunnels, giant vacuum chambers, engine test stands and a deep shaft for dropping test packages, NASA's Glenn Research Center puts air and space hardware to the test.

How will you go to space today?

The James Webb Space Telescope, WFIRST, Hubble, and hundreds of other missions sprang from or have close connections to NASA's Goddard Space Flight Center.

This springtime constellation can be seen chasing the Big Dipper around the northern sky.

Armstrong was the first human to step foot on the moon. He was also an accomplished engineer, test pilot and astronaut.

Innovation or menace?

Venus is the brightest planet in our solar system, has a hellish atmosphere, and is covered in volcanoes. Learn more about planet Venus here.

A supreme blast of energy.

How planets trap heat like a greenhouse.

Few know the globe's nooks and crannies more intimately than Kathryn Sullivan — explorer and student of the sky and the sea.