Anatomy of a Rover

In this interactive activity from NOVA, learn about the sophisticated scientific instruments on two identical robotic rovers that have explored Mars — Spirit and Opportunity.

Composite Materials for Space

Discover why engineers use composite materials to build spacecraft prototypes in this video segment adapted from NASA 360.

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Counting Neutrons on the Moon

Find out how scientists are using a neutron detector onboard a satellite to try to find water on the Moon in this video adapted from NASA.

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Explore the Moon

See what it is like to walk on the Moon by viewing this collection of QuickTime images from NOVA Online. Stunning 360-degree panoramas from each of the six successful Apollo Moon landings are featured.

Extreme Temperatures on the Moon

In this video segment adapted from Interactive NOVA, astronaut John Young experiences extreme temperatures on the Moon that are a result of the Moon's low gravity and lack of atmosphere.

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Galileo on the Moon

Watch Apollo 15 astronaut David Scott perform Galileo's falling objects experiment on the Moon in this video segment from NASA.

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Galileo's Big Mistake

Scientists don't always get it right. This video segment adapted from NOVA looks at Galileo's failed theory for the motion of the tides.

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How Big Is Our Universe?

This interactive resource from Harvard Smithsonian Center for Astrophysics uses images and activities to understand the scope and scale of our universe. Featured are technologies used by generations of explorers.

How Do You Get to the Moon?

This video, adapted from NOVA, showcases the competing engineering plans designed for landing a person on the Moon for the first time.

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Inflatable Moon Habitat

Visit an inflatable habitat designed for astronauts to live in on the Moon in this video adapted from NASA 360.

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Infrared Search for Origins

This interactive resource from NASA illustrates how infrared technology has advanced space exploration and can offer insight into questions about star formation, planetary systems, brown dwarfs, and the origins of the universe.

James Webb vs Hubble

Compare two space telescopes—the Hubble Space Telescope and its planned successor, the James Webb Space Telescope —in this interactive activity from NASA.

Mars Dead or Alive: Mars Up Close

NASA scientist Steve Squyres narrates this visual tour from NOVA Online of the most revealing discoveries made by the Spirit and Opportunity rovers on Mars.

Meet Curiosity, a Mars Rover

Learn about the sophisticated scientific instruments on Curiosity, the latest Mars rover, in this interactive activity adapted from NASA.

Newton's Third Law of Motion: Astronauts in Outer Space

In this video segment adapted from NOVA, NASA learns hard lessons from the first American attempt to do work while "walking" in space. The video also explores Newton's third law of motion.

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Robotic Exploration of Space Timeline

This interactive timeline from NASA journeys through the last century, detailing key discoveries, experiments, missions, and other events that brought robotic space exploration from science fiction to reality.

Viewing Gamma Rays

Learn how high-energy gamma rays interact with electrons and discover how astronomers create images from high-energy gamma rays, in this interactive activity adapted from NASA.

Viewing Radio Waves

Discover how astronomers create images from radio waves, in this interactive activity adapted from NASA.

Viewing X-Rays

Learn about high-energy light waves and how astronomers visualize X-rays in this interactive activity adapted from NASA.