Spaceflight covers topics related to human presence in outer space. Learn about weightlessness, astronauts and space tourism in this section.

Why are there dozens of dead animals floating in space?

Neil Armstrong may have been the first man on the moon, but he wouldn't have gotten there without fruit flies, rhesus monkeys or a dog.

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  • How SpaceShipOne Works

    How SpaceShipOne Works

    It's launch time for the first privately funded space flight. In the course of battle for the X Prize, a group called Scaled Composites has built and tested SpaceShipOne, a sub-orbital spacecraft intended to carry tourists on the ride of their life. Learn all about the craft. See more »

  • How Spacewalks Work

    How Spacewalks Work

    When astronauts talk moonwalking, they don't mean the Michael Jackson dance move. Spacewalks take an entire day of preparation -- and a 240-pound space suit. See more »

  • How Sputnik Worked

    How Sputnik Worked

    A small aluminum ball that orbited the planet for three months in the 1950s had a profound influence over your life. If it hadn't, you wouldn't be reading this now. See more »

  • How the Google Lunar X Prize Works

    How the Google Lunar X Prize Works

    Internet search giant Google is known for innovation. But now it's sponsoring the Lunar X Prize, in which private teams compete to land on the moon. Why? See more »

  • How the NASA Space Food Research Lab Works

    How the NASA Space Food Research Lab Works

    In the 1960s, space food was either cubed or tubed, and it wasn't very appetizing. Today's astronauts have a more palatable array from which to choose. Where is it developed? See more »

  • How the Space Race Worked

    How the Space Race Worked

    The space race between the United States and the former Soviet Union began in the early 1950s. What followed was an era of cooperation between the United States, and now Russian, space programs with the building and operation of the International Space Station. See more »

  • How Virgin Galactic Works

    How Virgin Galactic Works

    The not-so-distant future, regular people will be able to take flights into space. So how do you score a spot on a Virgin Galactic flight? See more »

  • How Weightlessness Works

    How Weightlessness Works

    As the International Space Station astronauts return to Earth after a three-month stay, learn about the effects of weightlessness on the body. See more »

  • How will Blue Origin work?

    How will Blue Origin work?

    Jeff Bezos made his fortune selling books online. So the next obvious step was to build rockets. Right? How does Blue Origin, Bezos' space travel company, stand up to the other commercial space racers? See more »

  • How Zero-gravity Flights Work

    How Zero-gravity Flights Work

    Almost everyone dreams of floating effortlessly like astronauts in space. The Zero Gravity Corporation offers this experience to the public. Go inside G-FORCE-ONE to find out what it's like to somersault in zero gravity and how simulating weightlessness works. See more »

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