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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What is it like to sleep in space?

When there are 16 sunsets every day, getting some shut-eye becomes a bit of an issue. Do astronauts get through it with some warm milk as they float?

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  • How do astronauts function in their space suits for hours at a time?
    How do astronauts function in their space suits for hours at a time?

    I would like to know how an astronaut, who is in a space suit for hours, can eat, drink and eliminate fluid- and solid-waste byproducts? What "mechanics" are built into the suit and how do they operate? See more »

  • How long can a human survive in outer space?
    How long can a human survive in outer space?

    How long can a human survive in outer space? In science fiction movies, this seems to be an area of much creative license, with some people exploding instantly, and others surviving for nearly a minute without long-term ill effect. I read once that one's blood would boil, but I read elsewhere that this isn't true. So what is it? See more »

  • Neil Armstrong Is the First Man on the Moon
    Neil Armstrong Is the First Man on the Moon

    Neil Armstrong's "one small step" signified a completely new achievement for humankind. Learn about the mission that put the first man on the moon. See more »

  • Aldrin, Edwin E., Jr.
    Aldrin, Edwin E., Jr.

    Aldrin, Edwin E., Jr. (1930-), a United States astronaut. He was the second human being, after Neil Armstrong, to set foot on the moon. See more »

  • Armstrong, Neil A.
    Armstrong, Neil A.

    Armstrong, Neil A. (1930-), a United States astronaut. As commander of the spaceship Apollo 11, he was the first human being to set foot on the moon. See more »

  • Bluford, Guion Stewart, Jr.
    Bluford, Guion Stewart, Jr.

    Bluford, Guion Stewart, Jr. (1942-), a United States astronaut. Bluford became the first black American in space while serving as a crew member on the shuttle Challenger during its flight in August, 1983. See more »

  • Collins, Michael (U.S. astronaut)
    Collins, Michael (U.S. astronaut)

    Collins, Michael (1930- ), a United States astronaut. He was a member of the Apollo 11 crew, which effected the first moon landing. See more »

  • Glenn, John H.
    Glenn, John H.

    Glenn, John H. (Herschel), Jr. (1921-), a United States astronaut and politician. See more »

  • Ride, Sally K
    Ride, Sally K

    Ride, Sally K. (Kristen) (1951-), a United States astrophysicist and astronaut. She was the first American woman to fly in space, being a crew member on the space shuttle Challenger flight of June, 1983. See more »

  • Shepard, Alan B., Jr.
    Shepard, Alan B., Jr.

    Shepard, Alan B. (Bartlett), Jr. (19231998), a United States astronaut. On May 5, 1961, he became the first American in space, riding in the Freedom 7 capsule to an altitude of 115 miles (185 km). See more »

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