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Tuesday, October 17, 2017

A supernova explosion contributed to the emergence of people on Earth


Studying samples of lunar rocks containing radioactive isotopes of iron, scientists have come to the conclusion that several million years ago, our planet experienced the flash of a supernova. Moreover, experts suggest that this outbreak could affect the process of evolution — including the emergence of modern humans.


photo: morguefile.com

The rocks brought from the moon by the us space program Apollo between 1969 and 1972, experts found a rather high content of iron-60 is an isotope, the half-life of which amounts to 2.6 million years. This iron, according to astronomers, can be found primarily in the interstellar space, and on the satellite it is, in all probability, could fall into the recent space standards of the explosion of a supernova that occurred close again, by the standards of space — from the Solar system, reports space.com.

According to specialists, the radioactive particles spread in space as a result of the outbreak, has reached the Solar system 1.7 to 2.6 million years ago, and they were not only on the moon, but on Earth. This, according to the researchers, could have an impact on how the final stage of evolution on the planet, including the development of the genus homo. Thus, in a sense, a supernova explosion affected people.

The assumption that the supernova explosion could affect evolution, have been expressed by some experts back in 1999, when the isotopes of iron were found in the study of ancient rocks from the bottom of the oceans. However, new data can become a new argument in favor of this assumption, says a group of scientists led by the renowned günther Corsica from the Technological University of Munich.

Astrophysicists remind us that the age of the Solar system is about 4.6 billion years. The results of their research experts presented in the journal in the journal Physical Review Letters.

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