A study finds the origin of Mars moons and confirms remnants of a moon greater than a billion years old


(MENAFN – Youm7) A recent study found that the two moons of Mars, Phobos and Deimos, are two parts of what was once a much larger Martian moon that was destroyed by a massive collision, and it is believed that the collision between the moon and a stray rock, possibly an asteroid, occurred between a billion And 2.7 billion years ago, and it led to a powerful explosion.

According to the British newspaper “Daily Mail”, two pieces of this violent explosion remained trapped in the orbit of Mars, which we know today as Phobos and Deimos.

Seismic data from NASA’s InSight mission was also fed into a computer simulation to determine the historical orbits of both current moons.

“The idea was to trace the orbits and their changes to the past,” says Dr. Amir Khan from the University of Zurich and the Institute of Geophysics at ETH Zurich.

The data showed that the two Martian moons in question would, at some point, have intersecting paths, indicating that they were more likely to have launched in the same place and therefore from the same origin.

The astronomers from ETH Zurich concluded in their paper published in Nature Astronomy that they originated from a much larger celestial moon, and the calculations were based on estimates of the two moons’ properties.

It is worth noting that the two moons were discovered in 1877 by the American astronomer Asaf Hall, and the moons were aptly named after twins from Greek mythology, Phobos is the Greek god of fear and panic, while Demos is the god of terror, and Phobos is larger than his twin. 13.9 miles, while Demos is only 7.5 miles in diameter, and the former is closer to Mars than its smaller twin.



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