The Hubble Space Telescope (HST) has operated continuously since 1990. During that time, four space shuttle-based service missions were launched, three of which added major observational capabilities. A fifth â€" SM-4 â€" was intended to replace key telescope systems and install two new instruments. The loss of the space shuttle Columbia, however, resulted in a decision by NASA not to pursue the SM-4 mission leading to a likely end of Hubble's useful life in 2007-2008. This situation resulted in an unprecedented outcry from scientists and the public. As a result, NASA began to explore and develop a robotic servicing mission; and Congress directed NASA to request a study from the National Research Council (NRC) of the robotic and shuttle servicing options for extending the life of Hubble. This report presents an assessment of those two options. It provides an examination of the contributions made by Hubble and those likely as the result of a servicing mission, and a comparative analysis of the potential risk of the two options for servicing Hubble. The study concludes that the Shuttle option would be the most effective one for prolonging Hubble's productive life.

Presents an overview of the Hubble Space Telescope, describing its initial launch in 1990 and impact on our understanding of the universe, along with some of its latest images of galaxies, stars, planets, and nebulas.

The Hubble Space Telescope (HST) has operated continuously since 1990. During that time, four space shuttle-based service missions were launched, three of which added major observational capabilities. A fifth â€" SM-4 â€" was intended to replace key telescope systems and install two new instruments. The loss of the space shuttle Columbia, however, resulted in a decision by NASA not to pursue the SM-4 mission leading to a likely end of Hubble's useful life in 2007-2008. This situation resulted in an unprecedented outcry from scientists and the public. As a result, NASA began to explore and develop a robotic servicing mission; and Congress directed NASA to request a study from the National Research Council (NRC) of the robotic and shuttle servicing options for extending the life of Hubble. This report presents an assessment of those two options. It provides an examination of the contributions made by Hubble and those likely as the result of a servicing mission, and a comparative analysis of the potential risk of the two options for servicing Hubble. The study concludes that the Shuttle option would be the most effective one for prolonging Hubble's productive life.

Discusses how the findings from the Hubble Space Telescope have affected the way scientists study the universe; includes photographs that were taken by the Hubble Telescope of the planets, distant galaxies, black holes, and the Shoemaker-Levy comet.

The book enables you to peer deeply into the wonders of the Universe in full color with unprecedented clarity and resolution Only Hubble Heritage picture book endorsed by the two leading space agencies, NASA and ESA Close-up photos within book are unmatched in competing texts, because the images have been prepared straight from the data by scientists to reach the highest possible quality

Designed with large images and distraction-free layouts to increase the impact of Hubble’s imagery, this book gives the reader a guided tour of the cosmos through the eyes of the Hubble Space Telescope. Before Hubble was launched in 1990, no exoplanet had ever been observed, dark energy was unknown, the age of the universe was a mystery, and the most distant objects observed were just halfway back in time to the Big Bang. Hubble has been the centerpiece in a revolution in astronomy, as well as giving the public a visceral connection to the Universe through its stunning images. The images that have been selected here explore key themes in recent astronomy, including planetary science, cosmology and stellar evolution, explaining Hubble’s contributions to our understanding of the universe. Hubble's unique images – some never published before – are presented together with a mix of cutting-edge science that highlights the key discoveries of the past few years and how they fit into Hubble’s growing list of scientific achievements. It is an unforgettable view of our amazing universe.