Ursa Major NewsLatest News On Ursa Major Sunken 467-foot Russian ship may have been carrying nuclear reactors for North Korea5/13/2026 11:24 AM US Air Force-funded 4000-lbf liquid rocket engine goes supersonic two times in 45 days5/6/2026 10:20 AM US-built reusable liquid rocket engine completes 10 flights, hits hypersonic speeds4/30/2026 11:53 AM US-built reusable liquid rocket engine completes 10 flights, hits hypersonic speeds4/30/2026 11:53 AM Draper liquid rocket engine achieves supersonic speeds in US Air Force test3/13/2026 7:49 AM US-made Hadley H13 rocket engine could power hypersonic aircraft and small rockets3/5/2026 10:06 AM US firm unveils new hypersonic missile that can launch from jets, ships, and ground2/25/2026 4:28 AM US firm’s solid rocket motor with grain propellant tested, delivers increased performance8/16/2025 11:52 AM US military-backed hypersonic vehicle to hit Mach 5+ in test with new rocket engine6/16/2025 6:00 AM Talon-A exceeds Mach 5 speed as US successfully tests reusable hypersonic vehicle5/5/2025 7:17 PM
