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Hypervelocity - Wikipedia

https://en.wikipedia.org/wiki/Hypervelocity
Hypervelocity is very high velocity, approximately over 3,000 meters per second (11,000 km/h, 6,700 mph, 10,000 ft/s, or Mach 8.8). In particular, hypervelocity is velocity so high that the strength of materials upon impact is very small compared to inertial stresses. [1] Thus, metals and fluids behave alike under hypervelocity impact.

ARES | HyperVelocity Impact Technology

https://hvit.jsc.nasa.gov/
Learn how NASA's HVIT team develops and tests shields to protect spacecraft from meteoroids and orbital debris impacts. See impact videos, images, and reference documents on the issue and the mission of hypervelocity impact technology.

How high-speed stars escape the galaxy | Astronomy.com

https://www.astronomy.com/science/how-high-speed-stars-escape-the-galaxy/
Hypervelocity stars are fast-moving suns that could break free of the galaxy's gravitational pull. Learn how they are formed, how many there are, and what they reveal about the Milky Way's history and future.

ESA - Hypervelocity impacts and protecting spacecraft

https://www.esa.int/Space_Safety/Space_Debris/Hypervelocity_impacts_and_protecting_spacecraft
The effects of hypervelocity impacts are a function of projectile and target material, impact velocity, incident angle and the mass and shape of the projectile. Beyond 4 km/s (depending on the materials), an impact will lead to a complete break­up and melting of the projectile. Typical impact velocities are around 14 km/s for space debris, and

Hyperfast Star Was Booted From Milky Way - NASA Science

https://science.nasa.gov/missions/hubble/hyperfast-star-was-booted-from-milky-way/
Learn how a star was ejected from the center of our galaxy by a black hole and became a blue straggler. Hubble observations reveal the star's origin, speed, and age, and how it could reveal the shape of dark matter.

ESA - What are hypervelocity impacts? - European Space Agency

https://www.esa.int/Enabling_Support/Operations/What_are_hypervelocity_impacts
What are hypervelocity impacts? Man-made space debris and natural meteoroids moving at high speed can damage satellites and constitute a serious hazard to spaceflight, especially manned spacecraft. If a spacecraft collides with an object with a relative velocity exceeding the speed of sound in solid material (this is about 4-5 kilometres per

NASA'S Hubble Shows Hyperfast Star Was Booted From Milky Way

https://science.nasa.gov/missions/hubble/nasas-hubble-shows-hyperfast-star-was-booted-from-milky-way/
WASHINGTON -- NASA's Hubble Space Telescope has detected a hypervelocity star, a rare phenomenon moving three times faster than our sun. The star may have been created in a cosmic misstep. A hundred million years ago, a triple-star system was traveling through the bustling center of our Milky Way galaxy when it wandered too close to the galaxy

Hypervelocity Impacts - Space Environment and Satellite Systems

https://sess.stanford.edu/research/hypervelocity-impacts
Hypervelocity Impacts. One of the most elusive aspects of the space environment relates to the interaction of spacecraft with hypervelocity impactors, which includes both orbital debris and meteoroids. During the past two years, my research group has identified a new spacecraft failure mechanism that is associated with the plasma resulting from

Hypervelocity Stars* | Annual Reviews

https://www.annualreviews.org/content/journals/10.1146/annurev-astro-082214-122230
Hypervelocity stars (HVSs) travel with such extreme velocities that dynamical ejection via gravitational interaction with a massive black hole (MBH) is their most likely origin. Observers have discovered dozens of unbound main-sequence stars since the first in 2005, and the velocities, stellar nature, spatial distribution, and overall numbers of unbound B stars in the Milky Way halo all fit an

Hypervelocity star observations constrain the Galactic Centre

https://arxiv.org/abs/2406.14134
Hypervelocity stars (HVSs) are stars which have been ejected from the Galactic Centre (GC) at velocities of up to a few thousand km/s. They are tracers of the Galactic potential and can be used to infer properties of the GC, such as the initial-mass function and assembly history. HVSs are rare, however, with only about a dozen promising candidates discovered so far. In this work we use a novel

What Are Hypervelocity Stars and How Do They Escape The ... - Owlcation

https://owlcation.com/stem/Hypervelocity-Stars-or-the-Real-Shooting-Stars
Notable Hypervelocity Stars. SDSS J090745.0+024507 was the first hypervelocity star to be found in 2005. It was discovered by Warren Brown (Harvard-Smithsonian Center for Astrophysics) and his team during a survey of "faint blue horizontal branch candidates" surrounding the center of our galaxy in an effort to better understand the mass distribution of the galaxy.

Hypervelocity stars in the Milky Way - AIP Publishing

https://pubs.aip.org/physicstoday/article/69/6/52/415494/Hypervelocity-stars-in-the-Milky-WayShooting-out
In a hypervelocity star survey of the sky's northern hemisphere, 11 observed line-of-sight velocities of stars as measured from Earth have been adjusted for the Sun's motion and plotted in the galactic rest frame as a function of their distance from the galactic center. Galactic escape velocity is plotted as a dashed (black) line.

Hypervelocity Impact Society (HVIS)

http://www.hvis.org/
The Hypervelocity Impact Society (HVIS) fosters the development and exchange of technical information in the discipline of hypervelocity impact phenomena by promoting technical excellence, encouraging peer review publications, and holding technical meetings on a periodic basis.

The Texas A&M University Hypervelocity Impact Laboratory: A modern

https://pubs.aip.org/aip/rsi/article/93/8/085106/2843647/The-Texas-A-amp-M-University-Hypervelocity-Impact
The ongoing advancements in hypersonic and space technologies reveal a critical need to fundamentally understand hypervelocity impact (HVI) phenomena and develop materials and structures that can mitigate HVIs. 1-10 In order to extend the knowledge base of impact phenomena into the hypervelocity regime, new testing methods were prioritized by the impact community. 11 Current studies can be

The Defense Department has released footage of a recent test of the U.S

https://taskandpurpose.com/news/air-force-hypervelocity-projectile-test-video/
The Defense Department has released footage of a recent test of the U.S. military's vaunted hypervelocity projectile in action By Jared Keller Posted on Sep 15, 2020 5:51 PM EDT The Defense

The Hypervelocity Free-Flight Facilities - NASA

https://www.nasa.gov/wp-content/uploads/2015/04/HFFFinfo28129.pdf
hypervelocity flight (such as incurred during atmospheric entry). A broad range of model velocities are attainable with its arsenal of powder guns and light-gas guns. Data derived from observations of model flight include: aerodynamic parameters (i.e. lift, drag & pitching moment coefficients, dynamic stability criterion, etc.), flow-field

Hypervelocity impacts as a source of deceiving surface ... - Science

https://www.science.org/doi/10.1126/sciadv.aav3971
Irrespective of the nature of the target and the projectile, our results (Figs. 1 to 3) show that the size of the craters produced by hypervelocity impacts is in the range of 6 to 10 mm, consistent with predictions by classical scaling rules (29, 30).The crater's morphology with a bowl-like shape (29, 30) is also typical of normal and oblique (up to 45° impact angle) hypervelocity impacts ().

Hypervelocity Definition & Meaning - Merriam-Webster

https://www.merriam-webster.com/dictionary/hypervelocity
Learn the meaning of hypervelocity, a noun that refers to a high or relatively high velocity, such as thousands of feet or meters per second. See examples of hypervelocity in sentences and its word history and usage.

Hypervelocity Dust Impacts On A Spacecraft Produce Plasma ... - SpaceNews

https://spacenews.com/hypervelocity-dust-impacts-on-a-spacecraft-produce-plasma-explosions-and-debris-clouds/
As Parker Solar Probe barrels through this region, thousands of tiny (about 2 to 20 microns in diameter, or less than a quarter of the width of a human hair) dust grains strike the spacecraft at

New class of Mars quakes reveals daily meteorite strikes

https://www.sciencedaily.com/releases/2024/06/240628124857.htm
Since hypervelocity impacts cause blast zones that are easily 100 times larger in diameter than the crater, knowing the exact number of impacts is important for the safety of robotic, but also

New class of Mars quakes reveals daily meteorite strikes

https://ethz.ch/en/news-and-events/eth-news/news/2024/06/new-class-of-mars-quakes-reveals-daily-meteorite-strikes.html
The source process of these quakes occurs much faster than for a tectonic marsquake of similar size. Where a normal magnitude 3-quake on Mars takes several seconds, an impact-generated event of the same size takes only 0.2 seconds or less, due to the hypervelocity of the collision.

Scientists clarify origins of lunar metallic iron - Phys.org

https://phys.org/news/2024-06-scientists-lunar-metallic-iron.html
In a study published in Nature Astronomy, Profs. Shen Laiquan, Bai Haiyang, et al. from Prof. Wang Weihua's group at the Institute of Physics of the Chinese Academy of Sciences have clarified the

The Air Force recently used the hypervelocity projectile — a low-drag

https://taskandpurpose.com/news/air-force-hypervelocity-projectile-test/
The U.S. military's vaunted hypervelocity projectile just took a major step towards knocking incoming cruise missiles out of the sky. Breaking Defense reports that the Air Force recently used

Evidence for early fragmentation-reassembly of ordinary ... - ScienceDirect

https://www.sciencedirect.com/science/article/pii/S0016703720305615
Textural and mineralogic studies of OC meteorites have shown that shock metamorphism (Stöffler et al., 1991, Rubin, 2004) and brecciation (Bischoff et al., 2018) resulting from hypervelocity collisions on their parent bodies are some of the most common features of OC meteorites. Shock metamorphism has affected all three of the OC parent bodies

Hypervelocity and Entry Research Talk (1958) - NASA

https://www.nasa.gov/wp-content/uploads/2024/06/hypervelocity-and-entry-research-talk-1958.pdf?emrc=fbfbdc
HYPERVELOCITY AND ENTRY RESEARCH TECHNIQUES presented by . 10- by 14-Inch Supersonic Wind Tunnel Branch and . Hypervelocity Ballistic'Range Branch . Here we will explain two of the NACA's several devices for research on the descent of missiles and satellites through a planet's atmosphere. The type and magnitude of the problems encountered

Pentagon Office Shares Details About Hypervelocity Missile ... - DSIAC

https://dsiac.org/articles/pentagon-office-shares-details-about-hypervelocity-missile-defense-weapon/
A new weapon system developed by the Strategic Capabilities Office — a secretive Pentagon agency meant to advance cutting-edge technology — could improve integrated air and missile defense by reducing overall costs and increasing flexibility, said an official Jan. 25. The technology — known as the hypervelocity gun weapon system, or HGWS

H. Rept. 118-559 - Congress.gov

https://www.congress.gov/congressional-report/118th-congress/house-report/559
house report on providing for consideration of the bill (h.r. 8774) making appropriations for the department of defense for the fiscal year ending september 30, 2025, and for other purposes; providing for consideration of the bill (h.r. 8771) making appropriations for the department of state, foreign operations, and related programs for the fiscal year ending september 30, 2025, and for other

Heavy 10mm Pistol & Handgun Ammunition - Buffalo Bore

https://www.buffalobore.com/index.php?l=product_detail&p=114
Heavy 10MM Ammo. 180 gr. Jacketed Hollow Point - (1,350 fps/M.E. 728 ft. lbs.) 20 Round Box. ITEM 21B. The Buffalo Bore Heavy 10MM ammo results from many years of customers' requests that we produce several such loads for the 10MM. These loads bring out the full potential of the 10MM but operate at standard pressures and are safe to use in any

NEF .22LR 9 shot "Won't eject" - TNGunOwners.com

https://www.tngunowners.com/forums/topic/46029-nef-22lr-9-shot-wont-eject/
Gunsmithing & Troubleshooting. NEF .22LR 9 shot "Won't eject". Got a cool little NEF (looks like the old H&R) revolver. Shoots consistenty, but I think it's been dropped or otherwise damaged. Where the barrel is pinned to the frame is a little off to one side. The front sight was off and I have that moving in the right direction.

Tennessee Words - 400+ Words Related to Tennessee

https://relatedwords.io/tennessee
Tennessee Words. Below is a massive list of tennessee words - that is, words related to tennessee. The top 4 are: kentucky, nashville, memphis and knoxville. You can get the definition (s) of a word in the list below by tapping the question-mark icon next to it. The words at the top of the list are the ones most associated with tennessee, and