Recently, astronomers have mapped out the most suitable environment for life in the Milky Way in the past 13 billion years. The Milky Way is a dangerous place, full of stars and gamma-ray bursts, which may strip off the atmosphere of a planet and threaten life on the planet. An analysis showed that the safest areas around the galaxy have moved from the periphery to the center of the galaxy over time.
Specimen of Fantasy Ear-shaped. The Cambrian Explosion Research Team of the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences recently discovered a peculiar bug about 500 million years ago in Weifang, Shandong. The head of this ancient bug resembles a pair of rabbit ears. Scientists named it”ears”. The shape of fanciers”.
The reporter learned from the Nanjing Institute of Geology and Palaeontology of the Chinese Academy of Sciences on November 30 that the Cambrian outbreak research team recently discovered a peculiar insect that was about 500 million years ago in Weifang, Shandong.
Since the creation of words, the history of human civilization has been 6,000 years. Counting from the evolution to the early apes (capable men), the history of human evolution has been 2.5 million years. So, when we live on an old ball that has been about 4.6 billion years old since the birth of the solar system, I don’t know if you have thought about this question:if the”history” is slightly different since the birth of the earth, maybe we are not Will appear here.
Shrimp-shaped fossils 500 million years ago [The”pipi shrimp” grew like this 500 million years ago] On November 5, the British”Nature” magazine reported that a species discovered more than 500 million years ago by the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences , An animal fossil shaped like a shrimp. Its body combined the characteristics of the giant marine predator”Odd Shrimp” and arthropods at that time. It was named”Zhang’s Kirin Shrimp”. It was a transitional species that opened the mystery of the origin of arthropods. This is another major new scientific discovery in the”Chengjiang Fauna” in Yunnan, my country, which adds empirical evidence to the theory of biological evolution.
The celestial bodies in the solar system were formed almost at the same time, including meteorites derived from various asteroids, so the earth and meteorites were formed at the same time, that is, the same age.
Before the incredible ages, all the continents of the earth were not in their current position. A huge continent occupies the entire earth, and a supercontinent is retrospectively called Pangea.
Everything in the universe is not eternal, and the sun on which we humans live is no exception. According to scientists’ speculations, the sun’s lifespan is about 5 billion years. When the sun”ends its life”, its volume will expand and change drastically. As a”red giant”, its surface will reach the vicinity of the earth’s orbit, and may even exceed this range, and the earth is likely to be destroyed by then.
As we all know, the earth was born out of chaos 4.5 billion years ago, and the oldest known planet is psrb1620-26b, about 12.7 billion years ago, and the earth was 4.5 billion years ago.
While the earth is revolving around the sun, the sun is also revolving around the center of the galaxy. It revolves every 220 to 250 million years. Therefore, according to the”galactic year”, the sun is actually only about 20 years old. In these”more than 20 years”, there have been 5 mass extinctions on Earth.