{{Short description|American aerospace company}} '''Green Launch''' is an American aerospace company developing alternative space launch technologies based on ground-based "impulse launchers" designed to reduce the cost of sending payloads into orbit. The company focuses on replacing the first stage of traditional rockets with [[hydrogen]]-powered light-gas [[launch system]]s that accelerate payloads from the ground before a secondary propulsion stage places them into orbit.<ref name="auto4">{{Cite web|url=https://newspacetracker.com/company/green-launch/|title=Green Launch|website=New Space Tracker}}</ref><ref name="auto">{{Cite web|url=https://contest.techbriefs.com/2025/entries/aerospace-and-defense/13377-0505-152518-hypersonic-launch-featuring-propellant-capture-with-suppressed-acoustic-and-heat-signature|title=Hypersonic Launch Featuring Propellant Capture with Suppressed Acoustic and Heat Signature - Create the Future|website=contest.techbriefs.com}}</ref><ref>{{Cite web|url=https://hightech.fm/2022/04/16/green-launch|title=Green Launch запустит спутники на орбиту при помощи гиперзвуковой пушки}}</ref><ref>{{Cite web|url=https://newatlas.com/space/greenlaunch-space-cannon-gas-launch/|title=Hypersonic space cannon promises 10 minutes from ground to orbit|first=Loz|last=Blain|date=April 14, 2022|website=New Atlas}}</ref>
==History== Green Launch targets small, acceleration-tolerant payloads such as [[CubeSat]]s and aims to provide low-cost and rapid launch services, including suborbital missions for hypersonic testing and atmospheric research.<ref name="auto3">{{Cite web|url=https://greenlaunch.space/|title=Home - Green Launch}}</ref><ref name="auto4"/> The concept builds on technologies previously developed in NASA and U.S. Air Force testing facilities over several decades.<ref name="auto3"/>
In December 2021, the company conducted a test of a vertical hydrogen light-gas launcher at [[Yuma Proving Ground]], accelerating a projectile to speeds exceeding Mach 3 as a proof of concept for future space launch applications.<ref>{{Cite web|url=https://www.army.mil/article/253661/u_s_army_yuma_proving_ground_helps_private_industry_customer_reach_new_heights|title=U.S. Army Yuma Proving Ground helps private industry customer reach new heights|date=February 1, 2022|website=www.army.mil}}</ref>
Green Launch plans to scale this technology toward reaching the [[Karman line]] and eventually enabling orbital delivery of small payloads.<ref>{{Cite web|url=https://greenlaunch.space/phases/|title=Phases - Green Launch|date=November 24, 2016}}</ref><ref>https://www.hou.usra.edu/meetings/tenthmars2024/pdf/3013.pdf</ref>
==See also== * [[Space gun]] * [[Light-gas gun]] * [[Project Babylon]] * [[Project HARP]] * [[Quicklaunch]] * [[Super High Altitude Research Project]]
==References== {{reflist}}
[[Category:Space guns]] [[Category:Aerospace companies of the United States]] [[Category:Private spaceflight companies]] [[Category:Space access]]
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