The small size of celestial bodies led researchers to the conclusion that asteroids were actually
So the researchers were able to trace the orbits and theirchange. As it turned out, the orbits of Phobos and Deimos crossed in the past. Therefore, scientists have suggested that they may have the same origin. The researchers note that a large celestial body moved in orbit and then disintegrated due to a collision with another body. Scientists suggest that Phobos and Deimos are the remains of that celestial body.
Rock-eating microorganisms grown on a piece of Martian soil
Using these results and their refined theory abouttidal phenomena, the researchers conducted hundreds of computer simulations to track the Moon's orbits in the opposite direction until they reached the intersection - the moment of birth of Phobos and Deimos. Depending on the simulation, this point in time lies between 1 and 2.7 billion years ago.
Pictures and measurements taken by othersMars probes indicate that Phobos and Deimos are made of a very porous material. At less than 2 grams per cubic centimeter, their density is well below the Earth's average density, which is 5.5 grams per cubic centimeter.
Researchers study the moons of Mars, Phobos and Deimos,since their opening in 1877. They are very small: Phobos is 22 km in diameter, it is 160 times smaller than the Moon, and Deimos is even smaller - its diameter is only 12 km.
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