If Space-Based Data Centers Are Not Viable, Should We Explore the Possibility of Interstellar Travel?

The Starcloud team, an imaginative startup focused on establishing a network of GPUs in space, has revealed an intriguing proposal for potential investors: the launch of a compact spacecraft on a remarkable 80,000-year journey to Alpha Centauri.

If this endeavor proves successful, it will signify the first human-made object specifically designed for travel to another star, making it the sixth object to break free from the bounds of our solar system.

This initiative, dubbed Fermi Explorer, is managed by a non-profit organization actively seeking partners, funding, and expert advice. The founding team includes Starcloud co-founders Philip Johnston, Adi Oltean, and Ezra Feilden, along with project manager Garret Jameson, who have formulated a plan to deploy current space technology to launch a 1-kilogram spacecraft with a payload area of 10 cm² into interstellar space.

The founders emphasize that this mission is fueled by humanity’s intrinsic urge to explore, aiming for a remarkable milestone while also tackling the Fermi paradox—the inquiry into why intelligent extraterrestrial life has yet to be detected, which inspired the mission’s name.

The estimated budget for this pioneering mission is around $15 million, with a targeted launch year of 2029. The non-profit is actively seeking contractors to design and build the spacecraft, financial partners, and a mix of scientific and artistic payloads—similar to the sensors and Golden Record that accompanied NASA’s Voyager spacecraft, the first human-made object to leave our solar system.

Numerous past attempts at interstellar exploration have faltered due to the immense distances involved and the relatively slow pace of our travel technologies. For context, Voyager, launched in 1977, is currently about 26 billion kilometers away from Earth, while Alpha Centauri, our closest stellar neighbor, is a staggering 41 trillion kilometers distant.

A previous venture in Silicon Valley sought to overcome these obstacles, culminating in the formation of a non-profit called Breakthrough Starshot in 2016, backed by Yuri Milner and Mark Zuckerberg. This initiative aimed to develop a multi-billion-dollar program using an innovative laser propulsion system to reach Alpha Centauri in just two to three decades. However, it ultimately lost momentum before 2025, despite sustained interest in space exploration.

Conversely, Fermi Explorer adopts a different strategy: instead of pushing the limits of technology, it aims to utilize existing resources to achieve something.

“I was once filled with hope but then faced disappointment!” Johnston reminisced about the Starshot initiative. “That’s why we are committed to this mission. We plan to launch something within three years. … the crucial distinction between most other [interstellar] missions and Fermi Explorer is that they attempt to achieve their goals within a human lifetime, necessitating billion-dollar propulsion R&D investments. We’ve intentionally set an 80,000-year timeline as our minimum viable mission.”

The strategy involves launching the spacecraft through a rocket rideshare, followed by efficient, low-power electric propulsion to traverse various orbits, ultimately steering it toward Alpha Centauri. The spacecraft is expected to function for about 12 years before entering a prolonged coast phase toward the neighboring star system.

“If a dinosaur bone can persist for 200 million years, then a metal container should easily withstand the radiation expected for 50,000 years,” asserted Johnston. “We do not intend to reactivate the spacecraft after 80,000 years. Our hope is that a future human civilization will come across it.”