
Small Interstellar Probe Sets Sights on Alpha Centauri With a $15 Million Price Tag
A Seattle nonprofit’s Fermi Explorer Mission plans a 1-kg probe to Alpha Centauri by 2029, using solar-electric propulsion and a 12-year Sun-orbit to reach escape velocity, then travel interstellar distances. The 4x4x4 inch payload will include a digitized Golden Record and messages from children; the mission is expected to cost under $15 million and could take up to 80,000 years, aiming to inspire future generations rather than be completed within one lifetime.










