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

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.

How Elon Musk Works

Elon Musk made his fortune in the Internet. But, now he's a rocket builder. Learn more about Elon Musk's plans to send average tourists into space. See more »

How will Blue Origin work?

Blue Origin is a commercial space company started by Jeff Bezos, founder of What plans does Blue Origin have in the commercial space race? See more »

How Sputnik Worked

Sputnik started the space race between the U.S. and the U.S.S.R. It also helped create the Internet. Find out how Sputnik worked. See more »

How the Space Race Worked

The Space Race between the United States and the former Soviet Union lasted 20 years. Find out what the space race was all about. See more »

What is it like to sleep in space?

What is it like to sleep in space? With 16 sunsets, getting shut-eye is a little harder than usual. Find out how astronauts doze in zero gravity. See more »

How the Google Lunar X Prize Works

Google Lunar X Prize is challenging would-be astronauts to a $20-million quest to the moon. See more »

Why do astronauts have to work out on the International Space Station?

What is it like to exercise in space? Astronauts can't exactly do laps around the track. Find out how astronauts exercise in space and why it's so important. See more »

How Space Farming Works

Space farming is the process of cultivating plants in space. Learn why space farming is important and how space farming will affect life on Earth See more »

How the NASA Space Food Research Lab Works

The NASA Space Food Research Lab develops all of the food used on NASA missions. Learn about the NASA Space Food Research Lab and space food. See more »

How Spacewalks Work

Spacewalks are how astronaurs repair spacecrafts. Spacewalking requires special training and equipment. Learn about spacewalks, from space suits to procedure. See more »