Featured Article: 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 »
Spaceflight covers topics related to human presence in outer space. Learn about weightlessness, astronauts and space tourism in this section.
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 »
Maybe Schwarzenegger had it right when he talked about the importance of pumping iron. Astronauts spend as long as four hours a day exercising. But why?
See more »These outer space abodes will have to protect inhabitants from extreme temperatures, radiation and flying moon dust. One man is actually selling deeds for lunar property at $20 a pop. Seriously?
See more »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. (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. (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 (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. (Herschel), Jr. (1921-), a United States astronaut and politician.
See more »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? 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'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 »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. (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 »