Spaceflight

He stood just 5 feet, 2 inches. But Gagarin cast an enormously long shadow in space exploration, both for his achievements and his mysterious death.

By Nathan Chandler

We’re celebrating the 50th anniversary of Apollo 11’s historic journey to the moon.

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?

By John Fuller & Maria Trimarchi

In the 1960s, space food was either cubed or tubed, and it wasn't very appetizing. Today's astronauts have a more palatable array from which to choose. Where is it developed?

By Maria Trimarchi

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?

By Jonathan Strickland

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?

By Jonathan Strickland

Almost everyone dreams of floating effortlessly like astronauts in space. The Zero Gravity Corporation offers this experience to the public. Go inside G-FORCE-ONE to find out what it's like to somersault in zero gravity and how simulating weightlessness works.

By Jonathan Strickland

We know who won – top-runner SpaceShipOne. We know what the team receives for that accomplishment: $10 million and an obscenely gigantic trophy. But what about the story behind the contest? Learn about the rules, restrictions, red tape, test crashes, successful launches and the technological innovations that may get you into sub-orbit sooner than you think.

By Lacy Perry

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?

By Craig Freudenrich, Ph.D.

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.

By Craig Freudenrich, Ph.D.

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 space bathroom tales. Here are 10 of our favorites.

By Stephanie Watson

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?

By Jessika Toothman

Blasting a spacecraft into space is one thing. Bringing it back in one piece is another. Spacecraft are likely to burn up into bits if they aren't specially insulated and designed for the ride.

By Jane McGrath

Believe it or not, to get to space and back, NASA relies on a piece of technology that's been around for centuries. Just what is a gimbal, anyway?

By Jonathan Strickland

These outer space abodes will have to protect inhabitants from extreme temperatures, radiation and flying moon dust. One man is actually selling deeds for lunar property at $20 a pop. Seriously?

By Cristen Conger

This passive-aggressive peacetime contest between the USSR and the U.S. unofficially ended with the U.S. moon landing. But the Soviets also touted a long list of space race accomplishments. Who won?

By Cristen Conger

Kids from around the world flock to Huntsville, Ala., to attend Space Camp. What's so appealing about science class in the summer, and can a 40-year-old go to camp?

By Julia Layton

When astronauts talk moonwalking, they don't mean the Michael Jackson dance move. Spacewalks take an entire day of preparation -- and a 240-pound space suit.

By John Fuller

There's no livestock in space farming, but growing plants in space could allow for long-term exploration and settlements. And with this farm, you don't need to watch where you step.

By Jessika Toothman

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.

By Stephanie Watson

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.

By John Fuller

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?

By John Fuller

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?

By William Harris & Nathan Chandler

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?

By Craig Freudenrich, Ph.D.

On September 18, 2006, Anousheh Ansari, a telecommunications entrepreneur, became the first female space tourist and the fourth space tourist overall. Could you be next? Find out what's in the works to get you to space.

By Kevin Bonsor