SPACE TRANSPORTATION SYSTEMS

Space Transportation Systems (STS) are the systems and architectures that deliver payloads and humans to outer space. Learn about space shuttles, rockets and other spacecraft.
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How the Delta IV Heavy Works

It's bigger, stronger, more efficient and more precise: The Delta IV Heavy is arguably the greatest rocket built to date. It can put 13 tons of satellite payload into its intended orbit with fuel to spare, and that's just the beginning.

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  • Why are space shuttle launches delayed so frequently?

    Why are space shuttle launches delayed so frequently?

    From a distance, a space shuttle looks pretty sturdy. It's enormous and solid, and it can withstand extreme temperatures when it enters the Earth's atmosphere. But in some ways, a space shuttle is delicate. See more »

  • Why is a baby monitor picking up video of the space shuttle?

    Why is a baby monitor picking up video of the space shuttle?

    For some reason, a baby monitor in Illinois has been picking up NASA's video broadcast of the space shuttle Atlantis mission. Find out what we think might be happening. See more »

  • Can you make a rocket engine using hydrogen peroxide and silver?

    Can you make a rocket engine using hydrogen peroxide and silver?

    At a drag race, I once saw a rocket car that was supposedly powered by spraying hydrogen peroxide on a silver mesh. The resultant reaction produced huge amounts of pure white smoke and apparently enough thrust to propel the car rapidly down the track. Does hydrogen peroxide really react with silver that way? See more »

  • How will the Mir space station be deorbited?

    How will the Mir space station be deorbited?

    I've heard that Russia's Mir station will be brought down out of orbit and crashed to Earth soon. How will they do that? See more »

  • Meteors burn up when they hit the Earth's atmosphere. Why doesn't the space shuttle?

    Meteors burn up when they hit the Earth's atmosphere. Why doesn't the space shuttle?

    In science, we are learning about the atmosphere. It protects us from meteors because it burns them up. So, why doesn't the space shuttle burn up? See more »

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