Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...
An international research group led by Germany’s Karlsruhe Institute of Technology conducted energy, economic, and environmental assessments of 54 photovoltaic-thermal (PVT) indirect-expansion (IDX) ...
Morning Overview on MSN
Voyager hit a 50,000K 'wall' at the solar system's edge
At the farthest edge of the Sun’s influence, the Voyager probes have stumbled into something that sounds almost mythic: a ...
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