The Teslarati article For HyperSciences, geothermal energy builds a path to space describes the use of technology which has been applied to drilling to launching projectiles to sub-orbital altitudes from the ground.
This kind of technology proposition gained NASA’s interest, and HyperSciences has since won a Phase I innovation award for from the agency, the testing for which was successfully completed at Spaceport America in New Mexico at the end of January this year. With this achievement under their belt, Russell’s long-time spaceflight dreams are really starting to take shape.
It links to the Vimeo video HyperSciences - Aerospace NASA Launch and after about
00:36 Mark Russell, Founder and CEO HyperSciences:
Our HyperCore engine, which uses jet engine-like propulsion technology, launches HyperDrone capsules of various sizes up to sub-orbital altitudes.
What is the jet engine-like propulsion technology, and how does it achieve circa 1000 g acceleration of the projectiles?