How did we get something that is the size of a football field and weighs 827,794 pounds into space?
Meet Robonaut 2, the first humanoid robot to fly in space.
NASA with its Earth-observing satellites can help better understand how human activity is changing Earth's climate.
The International Space Station is one of the most visible man-made objects in the sky because it reflects sunlight and often looks like a slow-moving star. This can fool a casual viewer, but it also makes sighting the space station easier if one knows when and where to look. NASA SkyWatch is an Internet tool that provides the information needed to view the space station and other satellites.