Nowadays it is difficult to find people did not hear of NASA. This is an organization of the American federal government, engaged in space exploration and aeronautics. The Office receives impressive funding and conducts extensive research. All graphics and video materials that created by the organization and all ancillary services compilated in the public domain. They are published on known resources (including on the NASA.gov) and can be utilized without any restrictions and purchase of copyright.On the NASA home resource, you can find out the project reports, which now operates NASA, listen to themed podcasts, watch fascinating photos and videos in which our planet captured from space, and even download themed e-books (textbooks, magazines and the like).