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Nonprofit Announces Plan to Launch Low‑Cost Probe to Alpha Centauri by 2029

The project aims to test whether a small, solar‑electric probe can leave the solar system and reach another star.

Overview

  • The Fermi Explorer Mission publicly unveiled its plan on Sept. 1, 2026 to launch a small spacecraft toward Alpha Centauri with a target rideshare launch before the end of 2029.
  • An AI system from Physical Superintelligence proposed a novel perihelion 'pump' trajectory that uses repeated close passes of the Sun to let small solar panels power electric thrusters and build escape velocity over about 12 years.
  • The team set a development cost cap below $15 million, has opened vendor and payload solicitations, and says one billionaire space founder verbally pledged $10 million as fundraising continues.
  • The proposed probe carries at least a 1‑kilogram payload inside a shielded 10×10×10 cm box, will be active for roughly 12 years and then coast for about 79,500–80,000 years with only limited early contact expected.
  • Fermi Explorer positions itself as a pragmatic, low‑cost alternative to stalled high‑speed concepts like Breakthrough Starshot, but its AI analyses are not peer reviewed and major challenges remain in survivability, tracking, data return and securing final vendors and launch commitments.