Perseverance rover captures rare Phobos transit across the Sun from Martian surface

NASA's Perseverance rover has captured a rare celestial event: the transit of Mars' moon Phobos across the face of the Sun. The images, taken on August 12, 2026, by the rover's Mastcam-Z camera, have provided unprecedented accuracy in mapping the moon's orbital parameters, pinpointing them within 100 meters. A Fleeting Shadow Across the Sun To capture the phenomenon safely, the rover employed specialized solar filters, safeguarding its sensitive optics from overheating and damage. Due to Phobos' irregular shape and its rapid movement relative to Martian rotation, the transit appears as a swift-moving dark silhouette against the solar disk. This dramatic event unfolds in less than a minute. Martian Vantage Point Yields Critical Data Observations conducted from the Martian surface offer a distinct advantage over Earth-based telescopes due to the minimal distance to the celestial bodies involved. Precisely tracking Phobos' coordinates is crucial for understanding the long-term evolution of its orbit. This data provides vital insights into the internal structure of both Mars and its moon. The tidal forces exerted by Mars on Phobos influence the moon's trajectory, offering clues about the rheology, or deformability, of the Martian mantle.