If you love space pictures, including shots of the big blue marble, you have to see this.

Did we mention that it’s free?

An immense gallery of space pictures now is newly available at http://www.nasaimages.gov on the Web.

NASA and Internet Archive, a non-profit digital library based in San Francisco, made available the most comprehensive compilation ever of space agency photographs, historic film and video.

The Web site combines for the first time 21 major NASA imagery collections into a single, searchable online resource.

In a five-year partnership, millions of images and thousands of hours of video and audio content will be posted, with enhanced search and viewing capabilities, and new user features on a continuing basis.

Over time, integration of the new http://www.nasaimages.org Website with the NASA Website at http://www.nasa.gov will become more seamless and comprehensive, according to the space agency.

Through a competitive process, NASA selected Internet Archive to manage the NASA Images Web site under a non-exclusive Space Act agreement, signed last July. The five-year project is at no cost to the taxpayer and images are free to the public, NASA announced.

Content of the Web site covers all the diverse activities of America’s space program, including imagery from the Apollo moon missions, Hubble Space Telescope views of the universe and experimental aircraft past and present. Keyword searching is available with easy-to-use resources for teachers and students.

Internet Archive is developing the NASA Images project using software donated by Luna Imaging Inc. of Los Angeles and with the generous support of the Kahle-Austin Foundation of San Francisco.