Space/Science — HabitableZone

Space/Science » in reply to About that X-43 being the 'first' air-breather to reach Mach-10.

re: About that X-43 being the 'first' air-breather to reach Mach-10.

I'm am curious if Aurora really exists. If so it would have had to be kept secret for like 20 years.

Bob Clark

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