The space agency is planning an experiment to remove simulated space junk as part of efforts to develop a simple and inexpensive disposal system for objects that might puncture the International Space Station or destroy satellites.
The Japan Aerospace Exploration Agency said scientists will try to slow a cylindrical object and steer it toward the atmosphere, where debris typically burns up.
Space junk beyond a certain size is monitored by the U.S. military but there is currently no effective means of removing it.