Space

    Ever since human first looked up in the night sky and wondered what was out there, we have been trying learn more about outer space. Explore the planets. Study asteroids and comets and find out what it is like to train to be an astronaut.

    Video thumbnail: Science Trek D4K: The Moon

    Science Trek

    D4K: The Moon

    The Moon is Earth’s closest neighbor. What does the Moon tell us about our own planet.

    D4K: The Moon

    Video thumbnail: Science Trek Astronauts

    Science Trek

    Astronauts

    What is it like to be an astronaut? Find out what it is like to work in space.

    Astronauts

    Video thumbnail: Science Trek D4K: Galaxies

    Science Trek

    D4K: Galaxies

    The universe is made up of billions of galaxies. But what is a galaxy? Find out here.

    D4K: Galaxies

    Video thumbnail: Science Trek Mars: Exploring Mars

    Science Trek

    Mars: Exploring Mars

    When did we first start exploring Mars?

    Mars: Exploring Mars

    Video thumbnail: Science Trek  Asteroids & Comets

    Science Trek

    Asteroids & Comets

    Asteroids and comets are clues to how our universe began. Find out more on Science Trek.

    Asteroids & Comets

    Video thumbnail: Science Trek D4K: Astronomy

    Science Trek

    D4K: Astronomy

    How do telescopes work?

    D4K: Astronomy

    Video thumbnail: Science Trek Exoplanets

    Science Trek

    Exoplanets

    Is there another Earth-like planet somewhere in the universe? Learn more about exoplanets.

    Exoplanets

    Video thumbnail: Science Trek The Sun: Sun Basics

    Science Trek

    The Sun: Sun Basics

    How was the sun formed, what are its layers, and how does it impacts Earth?

    The Sun: Sun Basics

    Video thumbnail: Science Trek D4K: Planets

    Science Trek

    D4K: Planets

    Learn about the planets in our solar system.

    D4K: Planets

    Video thumbnail: Science Trek Mars

    Science Trek

    Mars

    Why is Mars more like Earth than any other planet in the solar system? Find out.

    Mars

    Video thumbnail: Science Trek The Moon: Explore The Moon

    Science Trek

    The Moon: Explore The Moon

    Learn more about the Earth's only natural satellite.

    The Moon: Explore The Moon

    Video thumbnail: Science Trek D4K: Tour International Space Station with Barbara Morgan

    Science Trek

    D4K: Tour International Space Station with Barbara Morgan

    Take a tour of the International Space Station with astronaut Barbara Morgan.

    D4K: Tour International Space Station with Barbara Morgan

    Video thumbnail: Science Trek D4K: Barabara Morgan, Educator in Space Interview

    Science Trek

    D4K: Barabara Morgan, Educator in Space Interview

    How did Barbara Morgan go from a classroom in McCall to the International Space Station?

    D4K: Barabara Morgan, Educator in Space Interview

    Video thumbnail: Science Trek Mars: The Red Planet Revealed

    Science Trek

    Mars: The Red Planet Revealed

    Find out more about Mars.

    Mars: The Red Planet Revealed

    Video thumbnail: Science Trek Apollo 14 Astronaut Dr. Edgar Mitchell

    Science Trek

    Apollo 14 Astronaut Dr. Edgar Mitchell

    Learn what it was like to be an Apollo Astronaut and walk on the moon.

    Apollo 14 Astronaut Dr. Edgar Mitchell