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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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?


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

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

Spacecraft re-entry into the Earth is a tricky process. Find out how spacecraft re-entry works and why spacecraft are likely to burn up upon re-entry. See more »

How Fixing the Hubble Spacecraft Works

How Fixing the Hubble Spacecraft Works

Fixing the Hubble spacecraft has been a part of many NASA missions since the telescope launched in 1990. Learn how fixing the Hubble spacecraft works See more »

How RocketCam Works

How RocketCam Works

RocketCam became important to space shuttle launches after the Columbia tragedy. Find out how RocketCam can help ground control properly diagnose a problem. See more »

How Virgin Galactic Works

How Virgin Galactic Works

Virgin Galactic is the first commercial space tourism company, offering flights to space. Read about Virgin Galactic. See more »

How Astronauts Work

How Astronauts Work

Astronauts are adventurers and scientists who work in space. Learn who astronauts are and what they do in space and on Earth. See more »

Why are there dozens of dead animals floating in space?

Why are there dozens of dead animals floating in space?

There are dozens of dead animals in space, but how did they get there? Find out why there are dead animals in space and what they contributed to space travel. See more »

How Space Junk Works

How Space Junk Works

Space junk is the debris orbiting Earth, left behind by satellites and space shuttles. Find out how much space junk is up there and space junk dangers. See more »

Top 10 Space Conspiracy Theories

Top 10 Space Conspiracy Theories

Space conspiracy theories feature hoaxes, government cover-ups and intelligent aliens. Check out our list of the top 10 space conspiracy theories. See more »

How do astronauts eat in space?

How do astronauts eat in space?

Astronauts eat in space with the help of special contraptions and carefully packaged food. Learn more about how astronauts eat in space. See more »