China's Tianwen-1 Mars Orbiter Captures Images of Interstellar Comet 3I/ATLAS

China's Tianwen-1 Mars orbiter has successfully captured images of the interstellar comet 3I/ATLAS, marking one of the closest observations of this rare celestial object.

The images, taken with Tianwen-1's high-resolution camera, reveal the comet's nucleus surrounded by a vast coma stretching between 3,100 and 6,200 miles across.

The China National Space Administration (CNSA) stated that this observation represents an important extended mission for Tianwen-1 and serves as a valuable technical test for China's upcoming Tianwen-2 mission, which aims to collect samples from a near-Earth asteroid and explore a main-belt comet.

Discovered on July 1, 2025, by a survey telescope in Chile, 3I/ATLAS is the third known interstellar object to enter the solar system. Scientists believe it may have formed around ancient stars near the center of the Milky Way, with an estimated age of between 3 and 11 billion years, possibly older than the solar system itself.

The successful observation of 3I/ATLAS by Tianwen-1 provides valuable data for further scientific study of interstellar objects and demonstrates China's growing capabilities in space exploration.