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According to Lew Allen, the initial key design elements were specified by Edwin H. Land.They included i) solid state focal plane array, ii) integrated circuits for complex data processing, iii) large, fast optics with a 2.54 m (100 in) diameter f/2 primary mirror, iv) gigabit/s data link, v) long on-orbit operational lifetime for the imaging satellites, and vi) communication satellites to ...
[1] [2] The 2005 NASA Authorization Act designated the American segment of the International Space Station as a national laboratory with the goal of increasing the use of the ISS by other federal agencies and the private sector. [3] Research on the ISS improves knowledge about the effects of long-term space exposure on the human body.
NASA's Long Duration Exposure Facility, or LDEF (pronounced "eldef"), was a cylindrical facility designed to provide long-term experimental data on the outer space environment and its effects on space systems, materials, operations and selected spores' survival. [2] [3] It was placed in low Earth orbit by Space Shuttle Challenger in April
The crystallographic restriction theorem can be formulated in terms of isometries of Euclidean space. A set of isometries can form a group. By a discrete isometry group we will mean an isometry group that maps each point to a discrete subset of R N, i.e. the orbit of any point is a set of isolated points. With this terminology, the ...
The 10-story high, 30 metres (98 ft) dish, driven by a Vertex-RSI 7210 drive system, served for about 35 years as the West Coast Teleport of AT&T/COMSAT's communications Satellite Network, and was the Earth station serving Intelsat satellites parked in geosynchronous orbit over the Pacific Ocean.
N2YO provides real time tracking and pass predictions with orbital paths and footprints overlaid on Google Maps. [6] It features an alerting system that automatically notifies users via SMS and/or email before International Space Station crosses the local sky. The N2YO.com system powers ESA's, Space.com's and many other's satellite tracking web ...
Samples of matter returned from the asteroid Bennu support the theory that asteroids could have brought the building blocks of life to Earth, scientists report in a pair of new studies published ...
Thanks to the Extended Duration Orbiter kit, the Space Shuttle orbiter Columbia remained in orbit for almost 14 days and future missions with Columbia could last as long as a month. The kit consists of extra hydrogen and oxygen tanks for power production, extra nitrogen tanks for the cabin atmosphere, and an improved regeneration system for ...