Mission Overview

Objective

Objective

STARI is a twin-6U CubeSat formation-flying mission that serves as a pathfinder for future space-based optical interferometers. It demonstrates starlight handoff between satellites, validates sub-centimeter relative navigation, and advances critical optical and propulsion subsystems needed for exoplanet-imaging missions.

Deep space galaxy

Core Technologies

Each CubeSat carries a compact optical payload with dual fast-steering mirrors, high-speed cameras, and LED beacon tracking. Sensor-fusion GNC and cold-gas micro-propulsion enable millimeter-level control, while cross-link telemetry supports synchronized operation and data exchange.

Operations & Timeline

Operations & Timeline

Operating in a 500–550 km sun-synchronous orbit, STARI runs through Standby, Transfer, and Science phases under autonomous control. Launch is planned for 2029, followed by several months of formation-flying experiments and optical performance validation.

Publications

STARI: STarlight Acquisition and Reflection toward Interferometry

SPIE 2024

STARI: STarlight Acquisition and Reflection toward Interferometry

SmallSat 2025

Space Interferometry Formation Design using Relative Orbital Elements: the STARI Mission

2026 IEEE Aerospace Conference

Design of a Cold-Gas Propulsion System for the STARI Mission

2026 IEEE Aerospace Conference

News and Updates

first satellite mission

U-M astronomy will lead its first satellite mission

stari_concept

Turning to CubeSats in the Search for Life Thousands of Light-Years from Earth

SatelliteUmich

UMich Department of Astronomy’s first satellite launch could pave the way for exoplanet discoveries

Team

Contact the STARI Team

Get in touch

Have questions about STARI, collaboration ideas, or media inquiries? Send us a note and we’ll get back to you.