Founded by former U.S. Air Force member and physician Alfred Belen III in 2021, Belen Aerospace is developing Internal Atmospheric Propulsion, a proposed electric jet system that uses compressed gas inside a closed container to generate thrust for space travel. The company is advancing the concept through computational-fluid-dynamics simulations, prototype development, and its Jets in Space podcast, with the stated goal of lowering the cost of transporting materials through space.
Alternate Dimension Space TechnologiesAlternate Dimension Space Technologies develops space-propulsion technologies, including its patented Astrodrive electromagnetic propulsion system and a patented method for producing tetraoxygen propellant oxidizer. The company’s work centers on sustained electric-powered acceleration and propulsion concepts for spacecraft, with applications it says include interplanetary travel, asteroid mining, and space colonies.
Dawn AerospaceFounded in 2017, Dawn Aerospace builds reusable space transportation hardware, including the Aurora runway-operated spaceplane and flight-proven nitrous-based satellite propulsion systems. With more than 130 people working across four countries, the company has flown Aurora 64 times and sent more than 200 of its thrusters into orbit. Its aircraft-style approach was underscored in 2024 when Aurora became the first New Zealand-designed and built aircraft to fly supersonically.BROOKLYN, NY