PRESS RELEASE2026.6.16
CARBON FLY Supplies Carbon Nanotubes for STARS-X Microsatellite Project to Support Space Debris Capture Technology Demonstration Using Space Tether

Experimental model: SSS/Shizuoka University, Nozomi Laboratory
CARBON FLY, Inc. (Koto-ku, Tokyo), a developer and manufacturer of ultra-high-quality carbon nanotubes (CNTs) and specialized production equipment, has provided custom-engineered CNT tethers for the STARS-X microsatellite project. This initiative was jointly developed by STARS Space Service (SSS)—the aerospace and education division of Chubu Nippon Plastic Co., Ltd.—and the Nohmi Laboratory at Shizuoka University.
The supplied material will serve as the essential high-strength rope anchoring a dummy satellite in the “Space Debris Capture Technology Demonstration via Space Tether.” High-strength, ultra-lightweight CNTs, widely considered a mission-critical material for the future realization of space elevators, are now officially set to accelerate next-generation space exploration and environmental defense.

SEM image of our CNT
◾️ Background and Objective
In recent years, the rapid accumulation of space debris in Low Earth Orbit (LEO) has posed an escalating threat to operational satellites and the International Space Station (ISS). Active Debris Removal (ADR) has become a global priority. To address this challenge, organizations are aggressively developing debris capture and removal mechanisms that leverage advanced, lightweight, and ultra-strong fibrous materials.
◾️ The Critical Role of Fishing Line Manufacturing Technology in Deep Space
The newly deployed composite yarn merges CARBON FLY’s ultra-high-quality carbon nanotubes with precision braiding technologies developed by YGK Co., Ltd. (Headquarters: Naruto, Tokushima; CEO: Takafumi Saito), a company renowned for its world-class fishing line manufacturing. This engineering collaboration has produced a high-performance material ideal for “lead lines” that secure space debris capture nets. The upcoming orbital mission will validate its mechanical endurance and structural integrity under extreme space conditions. This integration of time-tested commercial braiding expertise with premium nanotechnology marks a significant step forward in orbital environment remediation.
◾️About the STARS-X Project

The STARS-X microsatellite project was officially selected by the Japan Aerospace Exploration Agency (JAXA) as part of its “Innovative Satellite Technology Demonstration-3” program under the specific theme of “Space Debris Capture Technology Demonstration Using Space Tether.”
◾️STARS Space Service (SSS) operates as the dedicated aerospace and educational division of Chubu Nippon Plastic Co., Ltd. Through strategic R&D partnerships with Shizuoka University, CARBON FLY, and other industry leaders, SSS supports microsatellite development while driving public awareness and educational initiatives to make space exploration more accessible to society.
◾️About YGK Co., Ltd.
YGK is a premier global manufacturer specializing in the development and production of advanced fishing lines, commanding top-tier market share in high-performance PE (polyethylene) lines. Widely recognized for its flagship brand “XBRAID,” the company leverages its proprietary manufacturing plants to engineer exceptionally precise, high-grade lines that meet stringent industrial and commercial standards.