2.5 billion years ago, the martian fragment emerges from a magma chamber supplying a volcano of Mars. After an eruption, the rock is expelled onto the red planet's surface.

An asteroid hits the martian surface. The impact is so powerful, that it ejects the rock into space, starting its long journey.

The martian rock crosses the orbit of the Earth and goes through the atmosphere. It is heated and subject to very high temperatures, thus becoming a meteore and then a meteorite at the time of impact.

The impact took place thousands of years ago in North-West of Africa. The meteorite is discovered in 2020. It is given the scientific name of Poikilitic Shergottite.