Core Insights - The Tianwen-2 mission was successfully launched on May 29, 2023, aiming to explore and sample asteroid 2016 HO3 and subsequently conduct scientific exploration of main-belt comet 311P [1][2] Group 1: Mission Objectives - The primary mission objective is to explore and return samples from asteroid 2016 HO3, which is considered a "quasi-satellite" of Earth, providing valuable insights into the early solar system [1] - The mission will also investigate main-belt comet 311P, which has characteristics of both traditional comets and asteroids, enhancing understanding of small celestial bodies [1] Group 2: Scientific Value - Asteroid 2016 HO3 is believed to retain primordial information from the solar system's formation, making it crucial for studying the composition, formation processes, and evolutionary history of the early solar system [1] - The exploration of 311P will significantly advance knowledge regarding the material composition, structure, and evolutionary mechanisms of small celestial bodies [1] Group 3: Mission Strategy - The Tianwen-2 mission employs a "fly, explore, and decide" strategy to effectively address uncertainties related to asteroid 2016 HO3 and maximize sample collection [2] - The spacecraft is equipped with 11 scientific payloads to investigate the target body's topography, internal structure, material composition, and potential ejected materials [2] Group 4: Timeline - The sample return capsule is expected to land on Earth by the end of 2027, after which the main spacecraft will continue its journey to comet 311P for further exploration [2]