German space researchers reboot effort to launch hypersonic space plane
Ars Technica 2015-08-18
Summary:
Goal: 100 passengers, 1-hour intercontinental flights, with test flights by mid-2030s.
Link:
http://feeds.arstechnica.com/~r/arstechnica/index/~3/-iX-W40REoA/From feeds:
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