Life in the earth comes from Mars

Scientists have long wondered how atoms can work together to form the molecular components of three major living organisms, ribonucleic acid (RNA), deoxyribonucleic acid (DNA) and protein.

A new hypothesis suggests the possibility of life beginning on Mars and being transferred to the earth by meteorites.

At the scientific conference called Meeting Goldschmidt in Florence City (Italy), Prof. Steven Benner of the Westheimer Institute of Science and Technology in Gainnesville, USA proposed the hypothesis that the red planet is the best place for life to begin. billions of years before the earth.

Scientists have long wondered how atoms can work together to form the molecular components of three major living organisms, ribonucleic acid (RNA), deoxyribonucleic acid (DNA) and protein.

Picture 1 of Life in the earth comes from Mars

Red planet is the best place for life to start before the earth billions of years.(Photo: BBC)

The molecules that combine into this genetic material are much more complex than pre-biological organic chemicals containing carbon, thought to have existed on Earth more than 3 billion years ago, in which RNA first appeared. First.

Energy such as thermal energy and photovoltaic action on organic molecules cannot produce RNA. Scientists believe that RNA needs to be molded from crystalline atoms in the form of mineral surfaces.

The most effective minerals for making RNA molds have decomposed on the ocean surface at the time of the Earth's fetus, but according to Professor Benner, they have a lot on Mars. Therefore, he stated the possibility of life starting on Mars.

In fact, the problem of the origin of life originated from Mars has been discussed, but Professor Benner added the idea of ​​the Martian origin of the earth's biosphere. This time, he presented the results of the study showing that the minerals containing the two boron and molybdenum elements play a key role for the atoms to form into molecules that form life.

Picture 2 of Life in the earth comes from Mars

The minerals most effective for making RNA molds have a lot on Mars

Prof. Bennen explained: 'Only when mobybdenum becomes extremely high oxidation does it affect the way in which the original life was formed. The form of molybdenum cannot be found on Earth at the time of life formed because 3 billion years ago, the earth is very oxygen deprived but there is a lot of oxygen in Mars. "

On the other hand, Mr. Benner said that Mars's environment was drier at the time and it was also a more suitable condition for life to form.

Update 17 December 2018
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