People living in space is the kind of thing you might see in a science fiction movie-but today people really do live and work far above the Earth on the International Space Station.
Learn the space station's amazing story, including how nations around the world joined together to build it. Discover what it takes to live in space for months at a time

For years, the space shuttle program has taken astronauts out of Earth's orbit, allowing humans to explore space and learn more about the universe around us. The space shuttle program is one of the most important steps in the history of our quest to explore the universe.
Learn the amazing triumphs and tragedies of the space shuttle program. Find out about the history of space exploration, from the earliest missions to the space shuttle's retirement. Discover how scientists hope to travel to space in years to come.

You've probably learned about the first moon landing and seen pictures of astronauts walking on the moon's surface. But do you know the story behind those photographs?
Learn about the battle between two of the world's most powerful nations to be the first to reach the moon. Find out about the successes and failures of the United States' historic Apollo program. Discover the amazing stories behind famous moon missions

Many science fiction stories in books, movies, and comics take place on the planet Mars. In real life, though, no person has ever traveled to the red planet. Instead, humanity has explored Mars with orbiters, landers, rovers, and other amazing technology. But even though we know a lot more about the red planet today, Mars is still a mystery.
Learn the history of Mars exploration and read about scientists' plans to send more missions to study Mars. Someday, humans will step foot on the red planet and make even more discoveries. In the meantime, explore the planet's many mysteries

Beyond our planet, far away from the Earth's orbit, humans explore the stars using small spacecraft called space probes. These vehicles help scientists learn more about the vast universe around our small, blue planet.
Learn the history behind the deep-space probes that travel the galaxy. Read about the amazing discoveries these probes have made over the years. Find out how scientists have explored the farthest reaches of our solar system using deep-space probes.