| 单词 | hypervelocity |
| 例句 | "Its flight test, on a very demanding long-range trajectory, represented an unprecedented technical challenge that will pave the way for the future of our national hypervelocity roadmap," the agency said in a statement. France conducts maiden test of hypersonic glider 2023-06-27T04:00:00Z The report also states that “various interceptor programs” are underway for attacking enemy hypersonic missiles, including interceptor missiles, hypervelocity projectiles, directed-energy weapons and electronic attack systems. U.S. sensors unable to track Chinese, Russian hypersonic missiles: report 2022-10-11T04:00:00Z “And, No. 3 is the development of new weapons systems that are not covered by existing treaties, meaning space- and cyber-related developments, as well as other stuff such as hypervelocity weapons.” China’s rise colors Biden-Putin summit 2021-06-14T04:00:00Z The ejection of their companions is the likely origin of the hypervelocity stars discovered in 2005 by Warren Brown and his collaborators in the halo of the Milky Way. Stars That Race through Space at Nearly the Speed of Light 2021-05-01T04:00:00Z Consequently, if ultramassive stars are the source of hypervelocity stellar ejections from the Milky Way’s disk, they must do that work quickly, before their untimely death. Midsize Black Holes May Explain the Milky Way's Speediest Stars 2019-08-07T04:00:00Z From the Gaia data Shen’s team flagged seven candidate hypervelocity white dwarf stars. The Milky Way's Speediest Stars Could Solve a 50-Year-Old Mystery 2018-05-09T04:00:00Z As a result, a giant piece of shrapnel gets kicked into space—"a hypervelocity star," Vennes said. Strange Dead Star Could Be Remnant of Mini-Supernova 2017-08-23T04:00:00Z There are alternative scenarios, but none explains why most of the 20 or so hypervelocity stars found so far are all in the same area of sky, in the Leo and Sextans constellations. Milky Way’s superfast stars may have been fired out of a nearby galaxy 2017-07-04T04:00:00Z He noted that the office was working on advanced navigation for smart weapons using micro-cameras and sensors; missile-defense systems using hypervelocity projectiles; and swarming drones that are “really fast, really resistant.” The exotic new weapons the Pentagon wants to deter Russia and China 2016-02-23T05:00:00Z The scientists also note that unlike other hypervelocity stars, US 708 rotates rapidly and is a compact helium star. 'Shrapnel' Star Spotted Setting Galactic Speed Record 2015-03-08T05:00:00Z Piro says the three hypervelocity white dwarfs from Gaia’s data boost the odds Shen’s proposed mechanism is correct—but notes more definitive proof is still needed. The Milky Way's Speediest Stars Could Solve a 50-Year-Old Mystery 2018-05-09T04:00:00Z A NASA animation shows the hypervelocity star's ejection after a star explosion, kicking off the rogue flight across the Milky Way. Speediest Star's Origins Revealed 2015-03-05T05:00:00Z They represent the first known "hypervelocity stars" with masses similar to that of our sun. Ultrafast Stars Discovered Racing Through the Galaxy 2013-02-20T18:15:00.280Z This is orders of magnitude slower than the hypervelocity impacts that a shuttle deals with, but the spear is thousands of times more massive than a fleck of paint. Saving Lives in Serenity: Can a Fanboy and Physics Change a Movie? 2013-01-10T14:45:00.373Z Ginsburg and his colleagues don't expect to spot any planets orbiting hypervelocity stars just yet, in part because 21 such wandering bodies are an awfully small sample group. Runaway Planets Zoom Through the Milky Way -- and Beyond 2012-03-26T12:00:00Z A shuttle window has never been penetrated by a hypervelocity impact, but it doesn’t have to be. Saving Lives in Serenity: Can a Fanboy and Physics Change a Movie? 2013-01-10T14:45:00.373Z But a new paper slated for publication in Monthly Notices of the Royal Astronomical Society suggests that hypervelocity stars may not be the lone wolves they seem. Runaway Planets Zoom Through the Milky Way -- and Beyond 2012-03-26T12:00:00Z |
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