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Science | Space | 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 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.


 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? 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 »

How do I become an astronaut?

 How do I become an astronaut?

How do I become an astronaut? See more »

How Space Suits Work

 How Space Suits Work

Spacesuits are incredible devices that allow astronauts to work safely in outer space. Learn how spacesuits work and about the history of spacesuits. See more »

How Space Tourism Works

 How Space Tourism Works

The space tourism industry offers people a way to take the ultimate vacation. Learn about space tourism and find out how you can become a space tourist. See more »

How does going to the bathroom in space work?

 How does going to the bathroom in space work?

A bathroom in space requires unique engineering that is different from a bathroom on Earth. Learn about the features of a bathroom in space. See more »