Momentus Space

Updated 15 Jul 2026
Launch provider Manufacturer United States Listed
3 Products
9 Years Active
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About Momentus Space

Momentus Space is an American space infrastructure company founded in 2017, specializing in in-space transportation and orbital services. The company develops microwave electrothermal (MET) propulsion-powered orbital transfer vehicles (OTVs) that transport satellites from rideshare orbits to their precise operational destinations.

Momentus's Vigoride OTV series rides to orbit as a secondary payload and provides on-board propulsion for last-mile satellite delivery, hosted payload services, and technology demonstration. The Vigoride platform has hosted commercial payloads from NASA, DARPA, commercial operators, and international customers, providing on-orbit validation for emerging space technologies.

The company's MET propulsion system uses water as propellant heated via microwave energy, offering a non-toxic, cost-effective alternative to conventional chemical or electric propulsion for in-space transfer vehicles.

Momentus completed a SPAC merger (Nasdaq: MNTS) and has raised significant funding from both strategic and financial investors. The company is targeting the growing market for hosted payload services, orbital logistics, and scheduled delivery of satellites to precise orbital slots.

Milestones

  • 2017 Momentus Space founded in San Jose
  • 2022 Vigoride-3 first operational mission on SpaceX Transporter-5
  • 2023 Vigoride-5 carries NASA TechEdSat and commercial hosted payloads
  • 2024 Expanded Vigoride service offering with enhanced hosted payload capacity

Capabilities

Carries 13
SmallSat <50 kgSmallSat 50–100 kg1U CubeSat1.5U CubeSat2U CubeSat3U CubeSat4U CubeSat6U CubeSat
Target satellites
up to 750 kg payload mass
Launch vehicles 1
Falcon 9
Delivers to 4
LEOSSOPOELLIPTICAL

Photos 2

Products

3
Flight-proven

The M-1000 is Momentus' flight-proven commercial satellite bus, designed as a low-cost, high-power platform for commercial constellation operators and U.S. Government customers, with flexible configuration and rapid manufacturing cadence.

1 3

The MET is Vigoride's primary propulsion system: a water-plasma thruster that uses solar-powered microwave energy to heat distilled water propellant and expel hot gases through a rocket nozzle. Initial on-orbit testing was successfully completed on Vigoride-5.

1 4
Flight-proven

Vigoride is Momentus' small orbital transfer and service vehicle that uses a water-fed microwave electrothermal plasma thruster to deliver, host, and reposition satellites in low Earth orbit.

2 6

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