Signs of extraterrestrial life here on earth.

Searching for signs of extraterrestrial life is the dream of the vast majority of scientists, if not all, but sending spacecraft to Mars or icy moons with shallow oceans like the European space agency's JUICE mission is expensive and time consuming.

So there could be another way to find signs of life of extraterrestrial origin without leaving the earth, as Professor Tomonori Totani of the department of astronomy at the University of Tokyo in Japan has a plan to search for remains of alien life, without leaving our planet.

What he wants to do is analyze the space dust that constantly falls to earth, it may seem like a strange idea, but the professor's approach is as follows; let's go back in time to the infantile era of the solar system, at that time life began to emerge on earth, but there were also many protoplanets, small worlds that could contain water, either on the surface or under icy crusts.

To this we must add that Venus and Mars must have had oceans and conditions suitable for life similar to what the earth had at that time, those protoplanets collided with the current planets or almost all of them ended up destroyed in colossal crashes, let's imagine that in life would have arisen in one of those worlds or even on Mars, for example, or on Venus.

But that those protoplanets where some of them could have arisen life will be destroyed by one of those crashes or fragments that have been shot from Mars, a certain amount of material from the impacted world can be ejected into space and travel great distances for periods of time extremely long.

In theory the material could contain direct or indirect signs of life from an ancient world, direct signs would be fossils of microorganisms and indirect signs would be organic molecules that are essential for the development of life and this material is what could be detected by scientists. in the dust that constantly enters our atmosphere.

In addition, dust has an advantage over meteorites and that is that the particles are lighter and can survive atmospheric entry since it does not generate much heat due to friction, so according to Professor Totani's plan, these stratospheric grains should be studied. of space dust in search of possible signs of life, what do you think of the idea?

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