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Space Transportation Systems

Space Transportation Systems (STS) are the systems and architectures that deliver payloads and humans to outer space. Learn about space shuttles, rockets and other spacecraft.

Why are space shuttle launches delayed so frequently?

From a distance, a space shuttle looks pretty sturdy. It's enormous and solid, and it can withstand extreme temperatures when it enters the Earth's atmosphere. But in some ways, a space shuttle is delicate.

10 Crazy Evil Spacecraft

Plenty of them scare the pants off us, like the space hulks from the Warhammer 40K universe. If we ever glimpse one of these 10 malevolent starships entering the Earth's atmosphere, we will run screaming in the other direction. We promise. See more »

10 Fictional Spacecraft We Wish Were Real

In honor of Douglas Adams and galactic hitchhikers everywhere, we submit this list of 10 spacecraft that we hopelessly pine for. Mindboggingly beautiful! See more »

How the International Space Station Works

In 1984, President Ronald Reagan had a vision for a permanently inhabited space station. Today, that vision is a reality: the International Space Station. Learn what it's like to live and work in space. See more »

How Lunar Rovers Work

Driving on Earth is tough enough. What happens when you throw in craters, unexpected solar events and backseat driving from your fellow astronauts while you bump over the moon? See more »

How SpaceShipTwo Will Work

Virgin Galactic is trying to give the average person a chance at playing astronaut for a day -- on SpaceShipTwo, the world's first civilian passenger spaceliner. See more »

Rocket Pictures

The science of rocketry is extremely complex and, at times, dangerous. This collection of images highlights the tech that gets all that science off the ground. See more »

How the Gemini Spacecraft Worked

Project Gemini played an important step in NASA's efforts to put a man on the moon. How did the Gemini spacecraft carry two astronauts into space and back safely? See more »

How the Apollo Spacecraft Worked

The Apollo program was initiated with the goal of landing a man on the moon. What was the spacecraft that helped make this giant leap for mankind? See more »

How Warp Speed Works

Traveling faster than the speed of light, you could go anywhere in minutes -- at least, in the "Star Trek" universe. Is this sci-fi device theoretically possible? See more »

Why is a baby monitor picking up video of the space shuttle?

For some reason, a baby monitor in Illinois has been picking up NASA's video broadcast of the space shuttle Atlantis mission. Find out what we think might be happening. See more »