Interorbital Systems (IOS) provides modular space-launch service solutions and satellite kits for customers worldwide. IOS develops, tests, and manufactures its low-cost NEPTUNE-Series rockets and satellite kits in the High Desert of California at its Mojave Air and Space Port headquarters. By drastically lowering rocket and satellite costs for commercial, academic, government, and private launches, IOS is making spaceflight available at the lowest cost in the industry. Explore Low Earth Orbit, the Moon, and beyond with IOS' NEPTUNE Modular Rockets and Personal Satellite Kits.

An IOS NEPTUNE series rocket

Rocket modularity

Interorbital's NEPTUNE modular rockets are composed of multiple Common Propulsion Modules, or CPMs, connected in parallel. CPMs are all identical, allowing IOS to assemble rockets with efficient, standardized production methods and assembly techniques. For different mission profiles, NEPTUNE rocket variants use different numbers of CPMs, to meet a wide variety of mission lift requirements.

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The modularity of the NEPTUNE allows IOS to streamline NEPTUNE production differently than other government and commercial launch vehicles. Mass-production and automation techniques allow CPMs to be produced quickly and in a cost-effective manner.

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CPM TV, the first launch of the NEPTUNE series

Low Earth Orbit

Interorbital's smallest orbital launch vehicle, the NEPTUNE 1, is capable of lifting 6.3 kg into a circular polar Low Earth Orbit. The NEPTUNE 1 is designed to place picosat and nanosatellite payloads of multiple CubeSats and TubeSats into orbit. IOS also launches custom payloads of larger satellites on its progressively larger rockets. The flexibility of the NEPTUNE rocket-series allows IOS to quickly customize launch vehicles according to customer need.

With its low-cost satellite kit-and-launch packages, IOS offers the world's most cost-effective space solutions for small-sat customers. Purchase of an IOS satellite kit and launch, complete with the hardware necessary to build a satellite, also places the customer on the IOS launch manifest for the next available flight.

The IOS launch manifest

IOS is a member and launch provider for the Lunar X Prize team Synergy Moon

To the Moon

Interorbital is partnered with team Synergy Moon in the Google Lunar X Prize competition. IOS will provide the launch capability to place Synergy Moon's rover on the lunar surface via an enhanced NEPTUNE rocket. The GLXP competition pitts private enterprises against each other in a second race to the Moon.

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Further plans have IOS establishing regular sample return missions from the lunar surface with its VIRUS-1 and RIPPER Lunar Landers. The RIPPER will fly on a NEPTUNE rocket to the Moon, excavate samples from the lunar surface, and return them to Earth.

Eventually, IOS plans to establish a lunar base, with its own regular shuttles to and from the Earth for scientists, industrialists, and tourists alike. An IOS human-rated capsule will be launched atop a large NEPTUNE rocket, lofting passengers to their destinations.

Venus, a long-term destination for IOS rockets

Exploring the Solar System

Long-term plans see IOS rockets launched on trajectories throughout the solar system. From establishing settlements on the Moon, Mars, and Venus to sending probes to the moons of Jupiter and Saturn, the modularity of the NEPTUNE series rockets allow Interorbital to change mission profile and destination without the exhaustive development cycles and the extreme costs that characterize the classic aerospace industry.

As IOS production ramps up, expect to see the NEPTUNE Rocket sending payloads to exotic destinations near and far in the Solar System, and beyond. In particular, IOS will provide launch solutions to make human space travel more widely available. Whether exploring remote destinations with scientific probes or ferrying tourists and scientists to the company's research station at the Moon's Southpole, IOS will be a key player in the expansion of New Space.

IOS' vision of colonizing Venus