There is a mystery surrounding molybdenum, since one of the discoverers of the double helix of DNA had made an enigmatic discovery and that was that molybdenum was essential for life on Earth, it is in lots of elements that make up our life, it is essential, it is a part of the machinery of life that is fundamental.
If they removed the gold from our body, nothing would happen, but if we had a device to extract the molybdenum from our body, we would die in a very short time. The point is that molybdenum is very scarce in the solar system and Mars apparently, according to some researchers, early Mars could have had a greater amount of molybdenum on the surface, that is, in the area, with water, with activity where life could have emerged, it could have had a little more molybdenum than the Earth, even so, it would be scarce, but what if life or the promoters of life did not come from Mars, but came on an interstellar asteroid?
A rock from Mars to Earth can take a few million years to arrive, but an interstellar trip can easily take more than 1 billion years. However, I remind you that in October 2024, a colony of living microorganisms was discovered in South Africa. They were alive, they were bacteria and possibly some archaea. They were there alive inside a 2,000 million year old rock. A sample was found 15 m deep.
Could those microorganisms have recently arrived on that rock? well no. That was one of the hypotheses that the researchers studied and that they discarded when they verified that the microorganisms were found in sealed fissures of that rock, the rock was 2,000 million years old and the fissures were sealed shortly after the rock was formed, trapping those microbes inside it and there they were for 2,000 million years on their own, without needing anything from the outside.
Maybe they had some water molecules and some things, some other chemical elements with which they could make their energy and their things, but they were alive, 2000 million years isolated, a colony, now think of an asteroid hundreds of meters in diameter, for example, I'm not saying several kilometers in diameter because there is a maximum size in which any form of life that was inside that asteroid was not going to survive an impact.
An asteroid of 5, 10, 20 km in diameter, the outer fragments may have separated from it and could fall far away, but at the place of impact everything was going to melt and what we would have was a lake of lava and that was going to exterminate any form of life that was on that asteroid, but one of 500 m that can fragment upon entering the atmosphere and fall into the ocean in quite entire pieces, could perfectly well have inside a colony of microorganisms that had lived there for 1 billion years or 2 billion years, those things make you think a lot.
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