NASA Headquarters, in Washington, provides overall guidance and direction to the agency, under the leadership of the administrator. Ten field centers and a variety of installations conduct the day-to-day work, in laboratories, on air fields, in wind tunnels and in control rooms.
In the early 21st century, NASA's reach spans the universe. The Mars rover Curiosity met its major science objective -- finding evidence of a past environment suitable for microbial life -- in the first eight months of a planned 23-month mission, and now is continuing to look for more information about the habitability of the Martian environment. Cassini remains studying the Saturn system, as Juno makes its way to Jupiter. The restored Hubble Space Telescope continues to explore the deepest reaches of the cosmos as NASA develops the James Webb Space Telescope.
Closer to home, the crews of the International Space Station are extending the permanent human presence in space and performing research that will help us understand how humans can live and work off Earth for long periods. Working with U.S. commercial companies to develop spacecraft capable of carrying humans and cargo to the International Space Station, NASA is helping to foster the development of private-sector aerospace while also building the Orion spacecraft and Space Launch System rocket to send humans into deep space.
Earth science satellites are sending back unprecedented data on Earth's oceans, climate and other features. NASA's aeronauticsteam is working with other government organizations, universities, and industry to fundamentally improve the air transportation experience and retain our nation's leadership in global aviation.