Clearing the Cosmos: Japanese Startup Proposes Ground-Based Laser Solution to Space Junk Challenge”
Addressing the pressing issue of space debris, a Japanese startup, EX-Fusion, is introducing a creative and entertaining solution inspired by the iconic 1978 arcade video game, Space Invaders. In a world grappling with the challenges posed by fragments of defunct human-made objects orbiting Earth, EX-Fusion aims to employ a ground-based laser system to tackle the problem of space junk.
Japanese Startup
Space Invaders, developed and released by Taito in Japan, gained legendary status as the highest-grossing video game of its time. The game’s premise involved a fixed shooter using a laser cannon to fend off alien invaders. While the game’s context was entirely fictional, its simplicity and success have now inspired an innovative approach to a real-world problem.
EX-Fusion’s solution involves the use of diode-pumped solid-state (DPSS) lasers, distinguishing it from the weapon-grade and fiber lasers typically employed for metal cutting, welding, or drone destruction. The startup plans to position these lasers at an observatory operated by EOS Space near Canberra, Australia. The lasers will target fast-moving space debris from the opposite direction of its trajectory, aiming to gradually decelerate it. Once the debris loses its speed, it will naturally descend into Earth’s atmosphere and burn up, eliminating the threat of orbiting space junk.
“The power of a laser for Japanese Startup destroying space junk is an order of magnitude lower than for nuclear fusion, but they share technical challenges such as controlling them via special mirrors,” explains EX-Fusion CEO Kazuki Matsuo, emphasizing the need for precise technological control.
The initial phase of the project will focus on targeting debris smaller than 10 centimeters, as these smaller objects pose a detection challenge in space. In the subsequent stages, both EX-Fusion and EOS Space will work on enhancing the precision and power of the laser beams fired from the ground.
While the concept of shooting lasers at space debris presents Japanese Startup developmental challenges, including precision and power control, it introduces an inventive and enjoyable method for addressing the burgeoning issue of space junk surrounding our home planet. The fusion of classic arcade entertainment with cutting-edge technology underscores the potential for creative solutions to complex global challenges. EX-Fusion’s approach adds an element of excitement to the crucial task of cleaning up Earth’s orbital space.
