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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 the Google Lunar X Prize Works

Internet search giant Google is known for innovation. But now it's sponsoring the Lunar X Prize, in which private teams compete to land on the moon. Why?


How Virgin Galactic Works

The not-so-distant future, regular people will be able to take flights into space. So how do you score a spot on a Virgin Galactic flight? See more »

How Astronauts Work

Astronauts risk their lives in the pursuit of science. How does NASA know who can be an astronaut? And what do they do when they're not in space? See more »

Why are there dozens of dead animals floating in space?

Neil Armstrong may have been the first man on the moon, but he wouldn't have gotten there without fruit flies, rhesus monkeys or a dog. See more »

How Space Junk Works

Humans produce plenty of trash on Earth, but you might be surprised to learn how much we've managed to leave in space. What's floating around up there? And will it come crashing down on our heads? See more »

Top 10 Space Conspiracy Theories

Some people don't believe a man walked on the moon. Others still think the Earth is flat. Are the Illuminati preparing the Earth to become an alien colony? See more »

How do astronauts eat in space?

How do you eat when you're in a low-gravity environment? Space programs have come up ingenious contraptions and packaging methods to make astronauts' meal times as normal as possible. See more »

Is space tourism safe?

If you had the money, would you pay $200,000 to launch into space? For at least one couple, the answer is yes. But is a space tour safe for the average citizen? See more »

Can humans hear in space?

Would you be able to hear the Starship Enterprise if it zipped past you in space? Would the destruction of the Death Star be completely silent? See more »

How Space Food Works

Space food has come a long way from Project Mercury's paste-filled tubes. Today's astronauts select menus that include everything from macaroni and cheese to brownies. So do astronauts really eat space ice cream? See more »

How could a hotel orbit the Earth?

A new space race is on -- who will be the first to build a space hotel? One company has gathered 3 billion dollars to do just that. Find out what life in a luxury space hotel might be like. See more »