Big Questions - NASA Science: Structure & Evolution of the Universe Big Questions NASA has defined a set of space and Earth Science questions that can best be addressed using the Agency’s unique capabilities. NASA works with the broader scientific community, considers national initiatives, and the results of decade-long surveys by the National Research Council in defining these questions. See also the Science Strategy section for more information about how NASA Science is pursuing these questions. in Public bookmarkswith cosmologynasaresearchresultsspacestructuresuniverse
8 Wonders of the Solar System, Made Interactive What might future explorers of the solar system see? Find out by taking an interactive tour through the eyes of Hugo Award-winning artist Ron Miller. Text and narration by Ed Bell Artist Ron Miller takes us on a journey to eight of the most breathtaking views that await explorers of our solar system. The scale of these natural wonders dwarfs anything Earth has to offer. What might we see and feel if we could travel to these distant domains? By interpreting data from probes such as NASA's Cassini, which is now exploring the Saturnian system, and MESSENGER, which goes into orbit around Mercury in March 2011, the artist's eye allows us an early visit to these unforgettable locales. in Public bookmarkswith astronomycassiniimagesinteractivemercurynasaplanetssaturn
Scientific Value of Arctic Sea Ice Imagery Derived Products During the 1990s, a government program brought together environmental scientists and members of the intelligence community to consider how classified assets and data could be applied to further the understanding of environmental change. As part of the Medea program, collection of overhead classified imagery of sea ice at four sites around the Arctic basin was initiated in 1999, and two additional sites were added in 2005. Collection of images during the summer months at these six locations has continued until the present day. Several hundred unclassified images with a nominal resolution of 1 meter have been derived from the classified images collected at the 6 Arctic sites.
To assist in the process of making the unclassified derived imagery more widely ... in Public bookmarkswith arcticchangeclimatecryospheredataicemeltingnasasheets