Unexpected DISCOVERY on Mars - Sign of life on the Red Planet

NASA's Perseverance rover has discovered an unexpectedly high volume of nickel in ancient Martian rocks. This indicates a very rich chemical environment that existed billions of years ago.

This was reported by Daily Galaxy.

The finding from the Neretva-Vallis valley resembles mineral formations on Earth often associated with microbiological activity. This does not prove the existence of life on Mars, but adds new elements to long-standing scientific research.

Since its landing in February 2021, Perseverance has been exploring the Jezero crater, which is 45 kilometers wide and was once believed to be a lake. Dr. Henry Manelski and his team from Purdue University report that signs of ancient water activity in the crater—such as stream beds and sedimentary layers—are clearly visible.

Eventually, the rover was able to reach the ancient stream delta Neretva-Vallis, where sediments approximately 3 billion years old are preserved.

To analyze the rocks, Perseverance used a combination of laser instruments, infrared sensors, and X-ray devices. Nickel was detected in 32 of the 126 analyzed rocks.

According to Manelski, nickel is generally considered a trace element on Earth and Mars because large amounts of nickel leaked into the core during the formation of the planets.

"The high amount we detected on the planet’s surface places unique constraints on how those rocks formed and later altered," the researcher emphasized.

This is the highest level of nickel measured so far in Mars' parent rocks. This element is observed along with iron sulfide minerals and sulfates such as jarosite and acanthite, which form as rocks slowly break down.

"Nickel-rich iron sulfide on Earth is found in ancient sedimentary rocks. Iron sulfide easily weathers in oxygen-rich environments, so its presence in ancient Earth rocks is one of the evidences that the early atmosphere was very poor in oxygen," Manelski explained.

The researchers were also intrigued by how similar these Martian minerals are to the widespread iron sulfide—pyrite—on Earth. Such formations are frequently linked to microbiological processes especially in oxygen-poor environments on Earth.

In that region, iron sulfides were also found together with organic carbon compounds. This combination may be related to biological activity, but could also result purely from chemical reactions.

"The presence of nickel-rich rocks suggests that if living organisms existed on early Mars, nickel could have been available to them in usable form," the scientist noted.

The source of the nickel is not yet known. Scientists speculate that it could originate from the breakdown of volcanic rocks or from nickel-rich meteorites. Additional research is needed to identify the source and investigate its possible connection with organic materials in the area.