Sep 27, 2020 15:00:00

Traces of a 'supernova explosion' that fell on the earth from the seabed 33,000 years ago are discovered

When a massive star ends its life, it can cause a large-scale explosion called a '

supernova explosion .' Research has been published that suggests that the wreckage of this supernova explosion was discovered in the deep sea of the Earth, suggesting that the solar system, including the Earth, may have moved through space and poured onto the Earth.

60Fe deposition during the late Pleistocene and the Holocene echoes past supernova activity | PNAS
https://www.pnas.org/content/117/36/21873

Ancient star explosions revealed in the deep sea
https://phys.org/news/2020-08-ancient-star-explosions-revealed-deep.html

Earth Appears to Be Traveling Through The Debris of Ancient Supernovae
https://www.sciencealert.com/earth-might-be-moving-through-the-debris-of-ancient-supernovae

The research was presented by a research team led by Professor Anton Walner, a nuclear physicist at the Australian National University. Professor Walner used an ultra-sensitive mass spectrometer at the Heavy Ion Accelerator Facility (HIAF) to investigate 33,000-year-old sediments taken from seafloor sites.

As a result, Professor Walner announced that he found traces of ⁶⁰ Fe , an isotope of iron and a radioactive substance.

⁶⁰ Fe, which has a

half-life of 2.6 million years, takes about 15 million years to completely collapse, and is said to occur only in fusion reactions such as supernova explosions.

Since the age of the earth is about 4.6 billion years, ⁶⁰ Fe discovered in the seafloor sediments 33,000 years ago may not have existed on the earth from the beginning, but may have come from outside the earth. Wolner argues that is high.

For the past few thousand years, the solar system, including the Earth, is said to have traveled through the clouds of gas and Chile called the Local Interstellar Cloud (LIC) . The origin of this LIC is unknown, but if ⁶⁰ Fe is derived from LIC, it is likely that the LIC was caused by a supernova explosion.

According to Professor Walner, previous studies have confirmed that ⁶⁰ Fe was found in seafloor sediments 2.6 million years ago and 6 million years ago. Since the difference in the amount of ⁶⁰ Fe is observed according to age, ⁶⁰ Fe detected from marine sediments are not substances present uniformly in space, the remains of supernovae extraterrestrial when the solar system passes through the LIC It can be said that it suggests that it has poured down.

Wall toner professor in the 'recent paper, ^the possibility ^{of 60} Fe, which is contained in the dust is floating around as interstellar material is shown. Then, ⁶⁰ Fe is derived from the older supernova explosion in the interstellar What we are detecting is a reflection of an ancient supernova explosion, 'he said, citing the detection of ⁶⁰ Fe in seafloor deposits of other eras as a future research topic.