NASA's Perseverance rover has captured footage of a potato-shaped satellite of Mars that crossessurface
Eclipse captured by PerseveranceMastcam-Z next generation April 2, Martian day (or sol) 397, lasted just over 40 seconds. This is much shorter than an ordinary solar eclipse involving the Earth's Moon. The fact is that Phobos is about 157 times smaller than it. Another satellite of Mars, Deimos, is even smaller than Phobos.
Perseverance, landing in February 2021,provided detailed video of the Phobos solar eclipse at the highest frame rate ever. This was made possible by the next generation Mastcam-Z camera system, which is an improved version of the Mastcam installed on Curiosity.
Scientists are interested in studying Phobos.As it orbits Mars, its gravity exerts a slight tidal force on the Red Planet's interior, slightly deforming the rocks in the crust and mantle. These forces are also slowly changing Phobos' orbit. As a result, geophysicists can use these changes to better understand how malleable the interior of Mars is, and learn more about its structure.
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