The US Space Agency’s Perseverance rover collected rock samples on Mars that may contain answers to important questions related to the existence of life. The rock samples taken by the rover in Jezero Crater were formed due to the solidification of volcanic lava. Scientists believe that when there was water in Jezero Crater, it must have gone into its inner layers and it is possible that after the water dried up, only salt remained there.
Was it water with salt?
According to NASA’s ground team, the rock sample contains salts that may have formed when underground water changed the composition of pre-existing minerals. The salt may be left over after the water has evaporated. NASA has told that there may have also been water in the salt. If this happens, they can be used as ‘time capsules’ that can give clues about Mars’ climate and the possibility of life.
According to scientists, it may be that underground water reached when there was water in the crater or the water in the lake remained inside the rocks after drying up. It is not clear how long the water will stay here, but NASA is sure that during that time there must have been an environment suitable for the growth of microorganisms.
Why is Jezero Crater special?
NASA has chosen Jezero Crater for this mission because research has shown the possibility that there used to be water here. This raises the possibility of life ever being present here. Ancient life can also be found in the sediments of the crater and it may be possible that if life is possible on Mars in the future, then its glimpse can also be seen here.