B.21 Heliophysics Citizen Science Investigations POC Change
2024年10月31日 · B.21 Heliophysics Citizen Science Investigations (H-CSI), solicits medium-scale citizen science projects to expand participation of citizen scientists in NASA heliophysics research, bringing unprecedented statistical power and …
Kepler-21 b - NASA Science
Kepler-21 b is a super Earth exoplanet that orbits a F-type star. Its mass is 7.5 Earths, it takes 2.8 days to complete one orbit of its star, and is 0.0434 AU from its star. Its discovery was announced in 2012.
B-21究竟是否属于六代机？ - 腾讯新闻
2024年3月25日 · 综合各方信息，当地时间2023年11月10日上午，美国新一代轰炸机b-21“突袭者”在加州成功首飞。 ... 国家级航空计划，3月联邦政府总统府科技政策办公室发布《国家航空技术优先事项》，8月nasa发布《航空战略实施计划2023》，10月faa发布《国家航空研究计划》等
New nuclear stealth bomber, B-21 Raider, takes its first flight | AP …
2023年11月10日 · The B-21 Raider has taken its first flight, moving the futuristic warplane closer to becoming the nation’s next nuclear weapons stealth bomber. The Raider flew out of Palmdale, Calif., where it has been under testing and development by Northrop Grumman.
Northrop Grumman B-21 Raider - Wikipedia
The Northrop Grumman B-21 Raider is an American strategic bomber in development for the United States Air Force (USAF) by Northrop Grumman. Part of the Long Range Strike Bomber (LRS-B) program, it is to be a stealth intercontinental strategic bomber that can deliver conventional and thermonuclear weapons.
B-21 unveiling - Aerospace America
2023年1月3日 · The first B-21 test aircraft was rolled out of a hangar in Palmdale, California, on a Friday night in early December, cloaked in a shroud and blue lighting (left). Northrop Grumman employees then pulled back the cover to reveal the the sixth-generation bomber, a …
Pentagon debuts its new stealth bomber, the B-21 Raider
2022年12月3日 · The B-21 Raider stealth bomber is unveiled at Northrop Grumman Friday, Dec. 2, 2022, in Palmdale, Calif. America’s newest nuclear stealth bomber made its debut Friday after years of secret development and as part of the Pentagon’s answer to rising concerns over a future conflict with China.
10 Facts About Northrop Grumman’s B-21 Raider
The B-21 will deliver a new era of capability and flexibility through advanced integration of data, sensors and weapons. Capable of delivering both conventional and nuclear payloads, the B-21 will be one of the most effective aircraft in the sky, with the ability to use a broad mix of stand-off and direct attack munitions.
B-21 Raider - Northrop Grumman
The B-21 Raider will be capable of penetrating the toughest defenses to deliver precision strikes anywhere in the world. The B-21 is the future of deterrence and the world's first sixth-generation aircraft to reach the skies.
Robust B-21 acquisition—20 per year or more at full scale production— is critical to deterring China. The PLA’s modernization is on pace to prepare it for a campaign to seize Taiwan by 2027 – throttling B-21 acquisition rate over the next decade will increase the risk of a conflict and result in costs that exceed any temporary program savings.
- 某些结果已被删除