AI Science • 50 W Hall Thruster • LEO to Lunar Orbit

Halcyon Galactic

Halcyon Galactic builds AI-guided CubeSats for long-duration science in LEO and lunar orbit. Onboard autonomy directs shared telescope and spectrometer observations before data is downlinked.

CubeSat Platform

A 2U spacecraft built for 10-year LEO science.

The 2U platform combines a shared optical stack, telescope, spectrometer, AI compute, and electric propulsion in one compact spacecraft. With 1000 m/s of target delta-v, Halcyon is designed to remain useful in LEO far beyond typical CubeSat lifetimes.

Hall Thruster

H1: compact electric propulsion for CubeSats.

The H1 is a 50 W Hall-effect thruster designed to extend mission life and provide real orbital mobility. Its 1000 m/s target delta-v enables years of stationkeeping, orbit control, and future lunar operations.

50 W

H1 Hall thruster

1000 m/s

Target spacecraft delta-v

50 W

ARM-based AI compute

Vacuum Chamber

Ground testing before orbital demonstration.

Halcyon validates propulsion hardware under representative vacuum conditions before flight. In-house testing shortens the loop from design to ignition, operation, and flight-ready iteration.

LEO Mission

AI-guided science in long-duration LEO.

Halcyon's first mission is planned for August 2027: a long-duration LEO CubeSat using AI to decide what the telescope and spectrometer should observe. The spacecraft improves science quality onboard before sending the best data home.

Lunar Orbit Operations

AI-guided lunar orbit science.

Halcyon's lunar mission is planned for December 2028 as the sequel to the LEO spacecraft. The upgraded CubeSat carries the same core architecture into lunar orbit for autonomous optical and spectral science.

As legacy lunar mapping assets age, Halcyon is designed to provide a smaller, lower-cost path for continued lunar observation. Onboard AI helps prioritize high-value targets before limited deep-space bandwidth is spent.

Founding Team

Built by propulsion and science leads.

Louk Goldberg

Founder & Chief Executive Officer

Louk holds an M.S. in Aeronautics and Astronautics with a plasma concentration from the University of Washington. He leads Halcyon's spacecraft architecture, propulsion development, and mission roadmap across autonomy and integrated flight systems.

Benjamin Fields

Co-Founder & Chief Science Officer

Benjamin is a scientific researcher at NASA Goddard Space Flight Center focused on astrophysics, technosignatures, and data-driven astronomy. He leads Halcyon's AI-guided telescope and spectrometer strategy for higher-value observations before downlink.

Investors

Invest in autonomous science spacecraft.

Halcyon combines AI, electric propulsion, and compact science payloads into one spacecraft platform. We welcome partners building the next generation of affordable, autonomous missions in Earth and lunar orbit.

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