Zhang said the initial prototype development of Tianwen-2 probe has been completed, and it will be launched around May 2025, targeting at a near-Earth asteroid coded 2016 HO3.

张说，“天问二号”探测器的初始原型开发已经完成，将于 2025 年 5 月左右发射，目标是一颗代号为 2016 HO3 的近地小行星。