Mars periodically witnesses moments in which its moons cast a shadow on its surface, as happens on Earth, but the “eclipse” on the surface of the Red Planet is completely different from what we see on our planet.
While the Earth’s moon takes 27 days to complete its cycle, Phobos orbits Mars once every 7.65 hours, while the Deimos cycle takes 30.35 hours, and between these two moons, Phobos has a larger size, blocking up to 40 percent of sunlight, while Deimos, it blocks Much smaller percentage.
And NASA’s Rovers, Opportunity, and Curiosity captured videos showing the moments of blocking sunlight, as it appears on the surface of Mars..
Scientifically speaking, these events are not considered eclipses as we witness on planet Earth, because they are transits that do not completely block sunlight..
