China is building a world-leading hypersonic wind tunnel to test hypersonic aircraft that can travel at speeds of Mach 25 (30,627kph), media reported, saying it will aid the development of future spacecraft that can transport people or payloads into space at far less cost. Read more
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| A screenshot of CCTV report showing State Key Laboratory of High-Temperature Gas Dynamics new wind tunnel (Credit: CCTV) |