Abstract: NASA is proposing the removal of 13 buildings at Langley Research Center (LaRC), located in Hampton, Virginia. Deconstruction of these facilities would begin in 2008 and continue into 2009. The buildings are abandoned or are in the process of being closed, and NASA has determined they are no longer needed. The deconstruction is intended to reduce the Center's infrastructure and allow LaRC to direct limited resources towards facilities that support NASA's overall mission, both currently and in the future. The project would reduce the footprint of LaRC facilities by approximately 3,493 square meters (37,603 square feet) and create additional green space at the Center. This Environmental Assessment evaluates the environmental impacts of the Proposed Action and the No-Action Alternative

There are well-founded concerns that current air transportation systems will not be able to cope with their expected growth. Current processes, procedures and technologies in aeronautical communications do not provide the flexibility needed to meet the growing demands. Aeronautical communications is seen as a major bottleneck stressing capacity limits in air transportation. Ongoing research projects are developing the fundamental methods, concepts and technologies for future aeronautical communications that are required to enable higher capacities in air transportation. The aim of this book is to edit the ensemble of newest contributions and research results in the field of future aeronautical communications. The book gives the readers the opportunity to deepen and broaden their knowledge of this field. Today's and tomorrow's problems / methods in the field of aeronautical communications are treated: current trends are identified; IPv6 aeronautical network aspect are covered; challenges for the satellite component are illustrated; AeroMACS and LDACS as future data links are investigated and visions for aeronautical communications are formulated.