* Astronomy

The Blackswift reusable hypersonic testbed has been cancelled by the U.S. Defence Advanced Research Projects Agency (DARPA) after Congress slashed the programs fiscal 2009 budget to $10 million, from $120 million.
Blackswift was to demonstrate an unmanned hypersonic vehicle able to take off, accelerate to a Mach 6 cruise and return to a runway landing.

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