SPACEFLIGHT

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

If the future of tourism lies in outer space, then we'll need to blast off those amateur astronauts from somewhere. Compared to the average airport, how space-age will these spaceports be?

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  • How do astronauts eat in space?

    How do astronauts eat in space?

    How do you eat when you're in a low-gravity environment? Space programs have come up ingenious contraptions and packaging methods to make astronauts' meal times as normal as possible. See more »

  • How do humans age in space?

    How do humans age in space?

    Humans in space may age just a bit more slowly than the rest of us, but they also experience rapid muscle and bone mass loss. Why does this happen, and do astronauts recover? See more »

  • How do I become an astronaut?

    How do I become an astronaut?

    Like a firefighter or a rock star, an astronaut is one of those jobs kids say they want to have when they grow up. If you're still serious, we can tell you what it takes. See more »

  • How do spacecraft re-enter the Earth's atmosphere?

    How do spacecraft re-enter the Earth's atmosphere?

    Blasting a spacecraft into space is one thing. Bringing it back in one piece is another. Spacecraft are likely to burn up into bits if they aren't specially insulated and designed for the ride. See more »

  • How does going to the bathroom in space work?

    How does going to the bathroom in space work?

    When nature calls, you have to listen. But when you're in microgravity, going to the bathroom can be a major challenge. How do astronauts get the job done? See more »

  • How Elon Musk Works

    How Elon Musk Works

    Internet king turned rocketman? After making his fortune on the Web, Elon Musk entered the commercial space race. Will this businessman and his SpaceX company make space tourism affordable? See more »

  • How Fixing the Hubble Spacecraft Works

    How Fixing the Hubble Spacecraft Works

    Since the Hubble Space Telescope launched in 1990, it has been plagued with problems that require frequent repairs. How does NASA fix it? See more »

  • How is carbon dioxide eliminated aboard a spacecraft?

    How is carbon dioxide eliminated aboard a spacecraft?

    In the confined cabins of spacecraft, like the space shuttle or space stations, carbon dioxide, which is toxic, poses a problem for astronauts. Keep reading to see how that CO2 is eliminated. See more »

  • How is GPS used in spaceflight?

    How is GPS used in spaceflight?

    GPS is great, but it's kind of Earth-centric. If we have our hearts set on traveling to distant planets and faraway stars, then it's time to come up with a new navigation system. NASA, of course, has an idea. See more »

  • How is oxygen made aboard a spacecraft?

    How is oxygen made aboard a spacecraft?

    On Earth, we have a constant supply of fresh air. But what happens in the tiny, confined cabins of spacecraft, like the space shuttle or space stations? How is oxygen supplied to the people on board? See more »

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