Japan's Hayabusa2 Spacecraft Prepares for Record Asteroid Flyby

Japan’s Hayabusa2 spacecraft is set to execute a record-breaking flyby of the near-Earth asteroid Torifune on July 5, 2026. This mission milestone will bring the veteran probe within just 1 to 10 kilometres of the 450-metre-wide rock while travelling at high speeds. The encounter serves as a critical test for autonomous navigation systems and will capture high-resolution imagery and scientific data on the asteroid's surface composition.

Originally famous for returning samples from the asteroid Ryugu in 2020, Hayabusa2 remains active under a Japan Aerospace Exploration Agency (JAXA) extended mission. Scientists have limited prior knowledge of Torifune, which is suspected to be a potential contact binary. The flyby will help researchers understand whether the asteroid resembles previous bodies such as Itokawa, providing valuable "zoo" data for the global planetary science community.

Beyond academic interest, this high-speed reconnaissance mission provides a blueprint for future planetary defence operations. The ability to rapidly characterise the size, shape, and structure of a hazardous near-Earth object is vital for developing deflection strategies similar to NASA's DART mission. Hayabusa2 continues its voyage toward its ultimate destination, the tiny 11-metre-wide asteroid 1998 KY26, which the spacecraft expects to reach in 2031.