Japan’s space agency says one of its probes has completed an exceptionally close pass by a near-Earth asteroid, coming within 400 meters of the object this month. The agency described it as the closest flyby ever recorded for a mission of this kind.
The spacecraft was described as refrigerator-sized, highlighting how compact the probe is compared with many larger deep-space missions. Even so, guiding a small craft to such a tight distance from an asteroid is a major technical achievement because these bodies are small, irregular and difficult to navigate around.
A flyby this close can help mission teams gather detailed observations while also testing the precision of their tracking and control systems. Near-Earth asteroids are of particular interest to scientists because they can offer clues about the early solar system and provide useful targets for future robotic exploration.
The record-setting approach adds another milestone to Japan’s asteroid research efforts and shows how far spacecraft navigation has advanced. It also underlines the growing ability of space agencies to operate very close to small celestial objects in deep space.
