Hypersonix Launch Systems is an Australian start-up that is turning heads in the hypersonic sector. Its current portfolio includes its unmanned DART, VISR, and Delta Velos demonstrator vehicles, all ...

Liftoff of the "That's Not a Knife" suborbital mission occurred at 7 p.m. ET on Friday (Feb. 27). When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

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For decades, the SR-71 Blackbird stood as the pinnacle of American aerospace engineering, a reconnaissance aircraft so fast and so high-flying that no missile ever caught it. Now, more than 25 years ...