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Private group wants to launch “cheapest possible” mission to Alpha Centauri
A private group plans a 2029 mission to Alpha Centauri, using AI-generated trajectory maneuvers to reach the system in 80,000 years.
What: Founded by Philip Johnston and supported by Alex Wissner-Gross of Physical Superintelligence, the $15 million 'Fermi Explorer' mission aims to test interstellar transit feasibility. The craft uses solar-electric propulsion and 'perihelion pump' maneuvers to accelerate to 25 km/s.
Why it matters: The project suggests that using AI to design extreme, long-duration orbital mechanics could enable low-cost deep space research, though the timeline is effectively a test of philosophy more than traditional exploration.
Decoder
- Fermi paradox: The apparent contradiction between the high probability of extraterrestrial civilizations and the lack of evidence for them.
- Perihelion: The point in an object's orbit closest to the Sun.
- Oberth effect: A maneuver where a rocket burns fuel at high speeds near a gravitational body to gain maximum kinetic energy.
Original article
The Fermi Explorer mission aims to launch a spacecraft carrying a 1kg payload to Alpha Centauri so that it reaches the system in fewer than 80,000 years. It will knock two 'filters' off the Fermi paradox: that species won't want to send spacecraft beyond their home star, or species will find that interstellar transit is too difficult. This would leave only a few options for why our galaxy appears not to be littered with alien civilizations. The team wants to use existing technology to do something cheap and fast and launch by 2029.
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