First physical evidence of a supernova explosion found on Earth

The researchers came to this conclusion after years of analyzing the materials, which began in 2013 when

Georgy Belyanin and Jan Kramers (UniversityJohannesburg, South Africa) discovered several unusual chemical signatures in a small fragment of Hypatian stone. They ruled out factors that could have contributed to the rock's strange composition and pieced together a timeline that begins with the early stages of the formation of the Earth, the Sun and other planets in the solar system.

Their hypothesis about the origin of the stone begins withspace: they believe that the red giant star has turned into a white dwarf. The process was supposed to take place inside a giant dust cloud. The white dwarf ended up in a binary system with a second star. The white dwarf star later "ate" the second star. At some point, the object exploded as a Type Ia supernova inside a dust cloud.

After cooling, the gas atoms remaining fromtype Ia supernova, began to stick to the particles of the dust cloud. The supernova's vast mixture of dust and gas atoms never interacted with other dust clouds. Millions of years passed, after which the bubble slowly turned into a solid body.

At some point, the breed began to move intoside of the earth. The heat from entry into the Earth's atmosphere, combined with the pressure from impact with the planet, led to the formation of microdiamonds and the destruction of the parent rock.

The Hypatia Stone, found in the desert, must beone of many fragments of the original impact element. “If this hypothesis is correct, then the Hypatia Stone will be the first physical evidence on Earth of a Type Ia supernova explosion. Perhaps just as important, it shows that a separate anomalous «premise» dust from space could have been included in the solar nebula from which our solar system was formed without being completely mixed,” the researchers note.

To support their theory, scientistsalso note that in 2013, a study of argon isotopes showed that the stone was not formed on Earth. A study of inert gases in the fragment, conducted in 2015, showed that it cannot belong to any of the known types of meteorites or comets.

In 2018, the team also published the results of various analyzes where they found nickel minerals and phosphides not previously found in any object in our solar system.

Read more

American satellite "saw" an unusual message from Earth

Published video from the rocket, which was launched from an experimental accelerator

The monster at the center of our Galaxy: look at the photo of a black hole in the Milky Way