The NASA Aeronautics Network 

 (AERONet) provides computer network- 

 ing facilities to ttie aerospace communi- 

 ty. NASA centers are linked via high 

 speed communications lines, and 

 lower-speed tail circuits connect other 

 members of the aerospace community 

 to NASA. In addition. AERONet also 

 provides Internet access with many 

 other networks, thereby increasing 

 national and international network con- 

 nectivity. 



The NASA Science Internet (NSINet) 

 provides connectivity among NASA, 

 industry, and academic researchers to 

 facilitate collaboration in Earth and 

 space science research. This network 

 builds on the Internet and includes tech- 

 nology to support the evolution of the 

 Internet. 



NREN and BRHR: Support for Grand Challenge 

 Teams 



NASA has established Grand Challenge applications 

 interdisciplinary teams in Computational Aerosciences 

 (CAS) and Earth and Space Sciences (ESS). The CAS 

 teams are examining coupled aerodynamics, struc- 

 tures/materials, controls and combustion modeling for 

 high-speed civil transport, high-performance aircraft, 

 subsonic aircraft, and rotorcraft. Through a NASA 

 Research Announcement, ESS teams have been estab- 

 lished in Earth system science, space and solar-terres- 

 trial physics, astronomy and astrophysics, biochemical 

 life cycles, planetary evolutionary processors, and mas- 

 sive data analysis. 



The CAS teams use the NASA Aeronautics Network 

 (AERONet) while the ESS teams use the NASA Science 

 Internet (NSINet) for high speed network connectivity 

 among NASA, industry, and academic researchers (see 

 map). In the future, these high performance network 

 highways will be constructed from fast-packet network 

 technology. NASA supports the architecture evolving in 

 the NREN component and participates in the develop- 

 ment and deployment of gigabit network technologies 

 and architectures. 



Pilot programs with the K-12 educational community 

 have been established to discover the best mechanisms 

 for using space and aeronautics assets to support edu- 

 cational communities in the U.S., and to provide practi- 

 cal models for using sophisticated computational and 

 networking resources in these communities. This is to 

 be accomplished in collaboration with Grand Challenge 

 scientists from the CAS and ESS projects, thereby 

 achieving direct involvement between NASA scientists 

 and the K-12 community. 



ASTA: Software Sharing 



As lead agency in ASTA's software sharing activities, 

 NASA coordinates the collection of and access to the 

 software base developed in the HPCC Program. The 

 goal of the HPCC Software Exchange is to facilitate the 

 exchange and reuse of software. Its specific objectives 

 are to 1) develop and demonstrate distributed architec- 

 tures and enabling technologies that support software 

 exchange, 2) implement an initial distributed HPCC 

 Software Exchange that satisfies the needs of the 



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