On 30 September 2024, NASA’s Perseverance rover turned its Mastcam-Z digital camera in the direction of the Martian sky, capturing a exceptional view of Phobos, Mars’ small, irregularly formed moon, because it handed in entrance of the Solar in a partial eclipse. This occasion, noticed on what scientists consult with as Sol 1285 of the mission, showcased the shadowy define of Phobos—a potato-shaped rock—highlighted in opposition to the Solar’s shiny disk.
A Distinctive View of Mars’ Potato-Formed Moon
Not like Earth’s spherical moon, Phobos has a distinctly irregular kind, carefully resembling an asteroid. Spanning about 17 by 14 by 11 miles, it follows a singular, elliptical orbit round Mars at a mere 3,700 miles from its floor. By comparability, Earth’s Moon is almost 239,000 miles away, making Phobos appear extremely near Mars. Its proximity and fast orbit permit it to circle Mars thrice day by day, creating frequent however temporary eclipse alternatives for Martian observers.
Tracing the Origins of Phobos
The origin of Phobos stays a thriller in planetary science. Whereas its look hints at an asteroid, many researchers consider Mars’ gravity did not seize Phobos however relatively might have shaped alongside the planet or within the aftermath of a colossal influence occasion. The practically excellent orbit that Phobos maintains round Mars is among the fundamental causes scientists have leaned away from the asteroid seize principle, as captured our bodies typically exhibit irregular orbits.
Perseverance’s Continued Statement of Martian Eclipses
This is not the primary time Perseverance has noticed Phobos’ transit. The rover has beforehand photographed comparable eclipses in April 2022 and February 2024. Different Mars rovers, reminiscent of NASA’s Spirit and Alternative, captured photos of Phobos eclipses in 2004, and Curiosity recorded this occasion in 2019.
