Technology

Fermi Explorer Mission plans 2029 launch of AI-designed interstellar probe to Alpha Centauri

A nonprofit aims to send a $15 million spacecraft on an 80,000-year journey along a flight path devised by an automated physics system.

Updated Sep 1, 2026 · 20:21 UTC1 reports

The short version

The nonprofit Fermi Explorer Mission intends to launch a low-cost probe toward Alpha Centauri by late 2029.
The flight path was generated by an open-source AI system developed by Physical Superintelligence to optimize propulsion near the sun.
The voyage is projected to take up to 80,000 years, and mission leaders anticipate later, faster spacecraft will likely arrive long before it.

The Fermi Explorer Mission plans to launch a spacecraft carrying at least 1 kilogram of payload—including a copy of the Golden Record—to Alpha Centauri by the end of 2029 at an estimated cost of $15 million.[MIT Technology Review]
Physical Superintelligence (PSI), backed by $58 million in funding led by Breakthrough Energy, developed an open-source system named Get Physics Done that mapped the proposed trajectory.[MIT Technology Review]
The proposed flight plan directs the probe inside Mercury's orbit to execute engine burns where solar intensity maximizes power while keeping overall spacecraft mass low.[MIT Technology Review]
The probe would take up to 80,000 years to cross the 4.4 light-years to Alpha Centauri.[MIT Technology Review]

The orbital maneuver paper describing the AI-generated trajectory has not yet undergone peer review.[MIT Technology Review]
Previous private interstellar initiatives like Breakthrough Starshot failed to launch despite substantial funding pledges, leaving the feasibility of the 2029 launch schedule unproven.[MIT Technology Review]