Tianwen-1 Captures Rare Close-up of Interstellar Comet 3I/ATLAS
Summary: The Tianwen-1 orbiter successfully captured rare close-up images of the interstellar comet 3I/ATLAS as it flew past Mars using its high-resolution camera.
On July 30, 2026, the China National Space Administration (CNSA) announced that the Tianwen-1 probe, currently operating in Mars orbit, has successfully captured precious images of the interstellar comet 3I/ATLAS. According to official reports, as this comet from outside the solar system flew past Mars near its perihelion, the Tianwen-1 orbiter's high-resolution camera conducted continuous observations and captured a series of clear close-up photographs.
Interstellar comet 3I/ATLAS is the third confirmed interstellar object to traverse our solar system, following 1I/ʻOumuamua discovered in 2017 and 2I/Borisov discovered in 2019. This observation by Tianwen-1 marks the first time an interstellar comet has been photographed up close by a probe orbiting another planet, providing a unique perspective for studying the physical characteristics and chemical composition of such rare celestial bodies.
According to the mission team, the imaging campaign leveraged the advantageous position of Tianwen-1 in Mars orbit. The photographs clearly reveal the comet's coma structure, and the data is undergoing further analysis, with expectations to uncover information about its surface material composition and volatiles. This successful observation further demonstrates the excellent scientific detection capabilities and operational flexibility of the Tianwen-1 probe platform.