A team of researchers at Tohoku University in Japan has unveiled a groundbreaking plasma thruster that could dramatically improve efforts to remove hazardous space debris from Earth’s orbit.

The bi-directional plasma thruster, inspired by fusion reactor technology, is capable of generating thrust in both directions. This allows it to approach space debris without physical contact and then decelerate the object until it reenters Earth’s atmosphere and burns up. According to the research team, the device could remove a one-ton satellite from orbit in approximately 100 days.

Space debris—also known as orbital junk—includes defunct satellites, spent rocket stages, and fragments from past collisions. These objects pose a growing threat to active spacecraft and astronauts, with even small pieces capable of causing catastrophic damage due to their high velocity.

The new thruster uses magnetic fields to accelerate plasma, creating a controlled stream of ions that can be directed forward or backward. This dual-mode capability makes it ideal for rendezvous and removal operations, especially in low-Earth orbit where most debris is concentrated.

The technology is still in development, but early tests suggest it could be a key tool in addressing the mounting risks of orbital congestion. International space agencies and private aerospace firms have expressed interest in scalable solutions for debris mitigation, as satellite launches continue to increase.

Colorado Springs, home to several aerospace and defense installations, has a vested interest in space safety. With NORAD and U.S. Space Command headquartered locally, advancements in orbital cleanup technology are closely watched by industry leaders and policymakers.

As the global space economy expands, innovations like the bi-directional plasma thruster may become essential for maintaining safe and sustainable access to Earth’s orbit.