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

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.

Is there such a thing as space sickness?

With all that zero-G simulation, astronauts have no reason to get sick during flight, right? Turns out space sickness affects even the most intrepid astronauts.

Can you sneeze in space?

You'd think so, wouldn't you? Journey into the past as the astronauts of the Apollo 7 mission tell us for sure.

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.

10 Offbeat Things Humans Have Launched Into Space

From sporting goods to movie memorabilia, members of the space program have been inventive about what they take into space. Here are 10 offbeat items that have taken the ride.

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?

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.

Can you make your own homemade spacecraft?

Why should space agencies and private companies get to have all the fun of making and launching true spacecraft, or those that cross the Karman line? Can't the rest of us seize a little cosmic glory, too?

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?

Top 10 Moments in Space Bathroom History

When you think about space travel, you probably don't take the time to wonder how astronauts go to the bathroom. However, the annals of aeronautic history abound with tales of space bathroom mishaps. Here are 10 of our favorites.

5 Memorable NASA Mission Videos

NASA has conducted several successful missions to space. These are some of the most famous.