Kenneth Glad
Humanity has always dreamed of crossing the vast oceans between planets. Now, a privately funded group wants to turn that ancient fantasy into physical reality. The timeline is staggering.
The Fermi Explorer probe could launch toward Alpha Centauri in just three years. This famous star system sits roughly four light-years away.
This small spacecraft faces an 80,000-year voyage. Founders are currently asking private investors to cover the entire $15 million budget, writes Videnskab.
British physicist Philip Johnston created the project. He previously helped launch a commercial company aiming to put data centres into Earth’s orbit.
Pushing the limits
The probe gets its name from the Fermi paradox. In 1950, Italian physicist Enrico Fermi famously asked, “Where are they?” when discussing the apparent lack of alien life.
This new mission will not answer that cosmic question. It serves instead as a highly symbolic first step toward real interstellar exploration.
Building a spacecraft on a strict budget requires serious compromises. The ship will weigh just 150 kilogrammes, and its core payload is a tiny metal box holding only one kilogramme of equipment.
Reaching deep space requires a reliable ion engine filled with xenon gas.
Powering the dark
The long journey actually begins by flying close to the Sun. By firing the engine near the boiling star, the probe gets a massive speed boost through a physics trick known as the Oberth effect.
The spacecraft will repeat this extreme solar slingshot for 12 years. If everything goes right, it will gather enough speed to leave the solar system entirely by 2043.
Scientists on Earth will not be able to track the tiny ship. The onboard payload focuses purely on messages intended for anyone who might find it in the distant future.
Waiting for tomorrow
According to Videnskab, manned interstellar travel remains firmly impossible for now. The energy required to move a heavy crewed ship at high speeds would far exceed the annual consumption of entire nations.
Slower flights do offer one major advantage. A sluggish probe will spend months passing through the Alpha Centauri system, giving artificial intelligence plenty of time to observe the planets.
Stopping at the final destination is completely impossible. The craft simply cannot carry the massive fuel reserves needed to hit the brakes.
For now, humanity must rely on robotic ambassadors to cross the void.
