Imagine for the Radcliffe wave, a series of dust and gas clouds (placed here in red) via the Milky Way. It is about 400 light years of our sun, with a yellow mark
Alyssa a. Goodman/Harvard University
Our solar system has gone through a vast wave of gas and dust about 14 million years ago, which adjusts the Earth’s view of the night sky. Perhaps the wave has left effects in the geological registry of our planet.
Astronomers have already discovered large waves similar to stars, gas and dust in a milky manner that falls up and down over millions of years. One of the closest and best degrees is the Radcliffe wave, which is 9000 light -years old, approximately 400 light years of light years of our solar system.
now, Efrem Maconi At the University of Vienna and his colleagues, his colleagues found that the Radcliffe wave was very closer to us, as our solar system crossed 11 million and 18 million years.
Maconi and his team used data from the Gaia Space telescope, which follows billions of stars in the Milky Way, to determine the recent groups of stars in the Radcliffe wave, along with the dust and gas clouds that were formed from them.
Using these stars to refer to how the wave is moving as a whole, they tracked the orbits of time in time to reveal its historical location. They also calculated the previous path of the solar system, where they suspended 30 million years, and found that the wave and Shamna followed a close approach between about 15 million and 12 million years. The appreciation is exactly when the crossing started and ended, but the team believes that the solar system was within the wave about 14 million years ago.
This would make the Earth’s environment galaxy darker than it seemed today, as we currently live in a relatively empty area of space. “If we are in a more dense area in the middle among the stars, this means that the light coming from you will be faint,” McCondi says. “It is like being in a blurred day.”
He said that the meeting has also left evidence in the Earth’s geological registry, where radioisotopes are deposited in the shell, although this would be difficult to measure due to how to do that. Explanation of the geological registry of the Earth is an ongoing problem, so finding the confrontations of a galaxy such is useful, he says Ralph Shinrich At the University of London.
More than that, the transit appears to have occurred during a period when the land was called the Middle Micoine. Maconi says, it is possible to link the two, although this will be difficult to prove this. Shinrich believes it is unlikely. “A general rule is that geology outperforms any cosmic effect,” he says. “If you change the continents or cross the ocean currents, you will get climate attacks from it, so I am very skeptical, you need anything in addition.”
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