The recent release of an image of interstellar comet 3I/ATLAS captured by NASA's HiRISE camera has generated mixed reactions among the public. Many users expressed disappointment as the image appeared unclear and did not meet their expectations for detail. The image was captured from the Mars Reconnaissance Orbiter on October 2, 2025, during the comet's perihelion, at a considerable distance, which limited the detail seen in the final picture. NASA clarified that while the HiRISE camera has previously produced high-resolution images of Mars, its capabilities were not ideally suited for capturing fast-moving interstellar objects like 3I/ATLAS. The agency emphasized that the image still contributes to understanding the comet's trajectory and behavior post-perihelion.

In conjunction with NASA's efforts, the Indian Space Research Organisation (ISRO) also provided an update, releasing new observations made by the Physical Research Laboratory (PRL). Using a 1.2-meter telescope located at Mount Abu, ISRO recorded images and spectroscopic data of 3I/ATLAS, which depicted a near-circular coma. This feature forms around the nucleus of a comet when solar radiation causes sublimation of surface ices, resulting in gas and dust escaping into space.

The spectroscopic analysis revealed significant emission bands, identifying the presence of molecules such as CN, C2, and C3 in the coma. These spectral markers are common in many comets across the Solar System. PRL scientists also analyzed the comet's production rate, estimating it at around 10²⁵ molecules per second, categorizing 3I/ATLAS as typical among Solar System comets. The observations conducted from November 12 to 15, 2025, contribute significantly to the ongoing study of comets and their behaviors as they navigate through space.

The contrasting updates from NASA and ISRO highlight the ongoing efforts to study celestial bodies, with a focus on understanding the characteristics and dynamics of interstellar comets like 3I/ATLAS. As the comet continues to move through the solar system, further observations and analyses are anticipated, promising to enhance our knowledge of these fascinating cosmic entities.