NASA’s X43A made history today as it made its first hypersonic flight at Mach 7.
http://story.news.yahoo.com/news?tmpl=story&cid=96&ncid=753&e=10&u=/space/20040327/sc_space/makinghistorynasasx43ascramjetstreaksacrosssky
The X-43 was launched by a B52 after taking off from Edwards Airforce base.The X43A splashed down in the Pacific after a short flight at nearly 5000 miles an hour.
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March 28, 2004 at 1:56 pm