Signs of a dinosaur-killing asteroid discovered on the moon

Asteroid impact on the moon millions of years ago, with large space rocks crashing into Earth, including a massive impact that killed non-avian dinosaurs, new findings suggest According to the research, the results of which were published in the journal "Science Advances" on September 28, the massive collisions in the prehistory of the Earth were not isolated events, but this Asteroid impacts have been accompanied by a series of smaller impacts on both the Earth and the Moon, which has caused the surface of the Earth's moon alone to have more than 9,000 impact craters.

BingMag.com Signs of a dinosaur-killing asteroid discovered on the moon

Asteroid impact on the moon millions of years ago, with large space rocks crashing into Earth, including a massive impact that killed non-avian dinosaurs, new findings suggest According to the research, the results of which were published in the journal "Science Advances" on September 28, the massive collisions in the prehistory of the Earth were not isolated events, but this Asteroid impacts have been accompanied by a series of smaller impacts on both the Earth and the Moon, which has caused the surface of the Earth's moon alone to have more than 9,000 impact craters.

This research can help astronomers to better understand the internal dynamics of the solar system. And also to better calculate the probability of huge and destructive space rock collisions in the future.

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Scientists of "Space Science and Technology Center" (SSTC) of Curtin University, Australia by studying micro glass beads Kopi achieved these results in lunar soil samples returned to Earth by China's Chang'e-5 mission in 2020.

These tiny glass grains, due to heat and intense pressure caused by meteorite impacts, and thus by assessing their age, researchers can draw a timeline of the bombardment of the moon by asteroids. to the Moon, coincides with the impact of space rocks on Earth, indicating that the timeline considered can also provide insight into the evolution of planet Earth.

"Alexander Nemchin" (Alexander Nemchin) The head of this research and SSTC professor said in this regard: "We used a wide range of microscopic analytical techniques, numerical modeling and geological investigations together to determine how and when these microscopic glass beads formed from the moon."

This collision led to an event known as the Cretaceous-Paleogene extinction event. Finally, it destroyed three quarters of all life on Earth, including non-avian dinosaurs. per hour) hit the earth and created a huge impact crater with dimensions of about 150 km wide and 19 km deep.

Apart from the shock waves created by the initial impact, the impact of this asteroid caused a series of The effects on life on Earth were drastic, including the rise of thick clouds of dust that blocked out sunlight.

The new SSTC research comes alongside other work that suggests this giant space rock killed off the dinosaurs. , may be related to other smaller asteroids that have hit the Earth, and this can be revealed by studying the history of asteroids hitting the Moon.

Namchi "Major collision events on Earth, such as the Chicxulub collision 66 million years ago, could have been accompanied by a number of smaller collisions," N said. If so, it suggests that the age-frequency distribution of impacts on the Moon could provide valuable information about impacts on Earth or within the Solar System.

The team now plans to use data collected from Chang'e-5 lunar soil samples. to compare with other existing samples from Earth's moon and also with the age of moon craters. This analysis could reveal other impact events on the Moon, and in turn help uncover signs of asteroid impacts on Earth that may have affected life.

Cover photo: A graphic of the Moon and the impact. An asteroid to Earth
Credit: Juan Gartner/Getty Images

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