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Continue to ChatTop aerospace officials just called hypersonic planes "inevitable" https://thefutureisprettyrad.com/2017/01/21/top-aerospace-officials-just-called-hypersonic-planes-inevitable/
Top aerospace officials just called hypersonic planes "inevitable" https://thefutureisprettyrad.com/2017/01/21/top-aerospace-officials-just-called-hypersonic-planes-inevitable/