Dear readers, thank you for reading my article in your busy schedule, this is an affirmation of my efforts, but also the motivation to continue to create, I would like to extend my most sincere respect to you, I hope to get one of you"Attention"Thank you!Once upon a time, the Greeks believed that the goddess Hera sprinkled milk all over the sky, and since then, a river of milk has flowed for 100,000 light-years in the night sky of Capricornus. Yes, this is the home of our solar system – the Milky Way. It is worth mentioning that it is a miracle of the universe in itself. Few people know about it, but this is one of the rarest galaxies. 9Of the 30,000 galaxies, only 20 are similar to the Milky Way. And, of those 20,000 galaxies, only 4% have moons as bright as the Milky Way.
He has dozens of such clouds, including the unique Large Magellanic Cloud and the Small Magellanic Cloud. Such bright and huge satellite galaxies are extremely rare in the universe. Earlier this year, another computer simulation data was released showing that the Milky Way is too large compared to its neighbors in the local group of galaxies.
By the way, this study simulated millions of galaxies billions of light-years away. It turns out that there is less than a 1 in 1 million chance that a galaxy with a mass equal to the Milky Way will appear in space. The structure of cosmic filaments does not at all mean that there is a large cluster of galaxies in our region. In other words, our galaxy is a giant in the universe.
It is possible that this is related to cannibalism in the Milky Way. Yes, at least thirty-three thousand of these galaxies are immigrants. In general, it is normal for galaxies to absorb smaller galaxies. But one of the miracles has to do with this fact: Gaia-Sausage-Enclados, which was swallowed up by the Milky Way in the distant past. The truth is that its remnant skeleton takes up too much space, even though it is only four times smaller than our galaxy.
The historic collision itself took place about 10 billion years ago. This event may have played a role in the emergence of life on Earth. Another bright wonder of the Milky Way is the Orion Nebula. Even at a distance of 1,500 light-years, we can see it with the naked eye. It occupies four times the space of the Moon in the night sky and is 30 light-years in diameter.
Even in ancient times, she was worshipped and worshipped. The Mayans, on the other hand, generally used stars to compile their calendars, and the Orion Nebula has a huge number of stars: about 700. In addition, there will be hundreds of thousands of sun-mass stars that form material, which has not yet been converted into stars under the influence of gravity. Currently, 150 protoplanetary disks have been observed in the Orion Nebula, which accompanied the birth of stars and formed planets around them.
According to preliminary estimates, the Orion Nebula will last only 100,000 years. This is because newborn stars are actively blowing gas and dust out of their surroundings. So only they will remain in the nebula's location. Speaking of stars, Methuselah is only 202 light-years away. A study published in 2014 showed that the star had 142700 million years old.
If you remember, the age of our universe is estimated to be 13.8 billion years. How is this possible?It's simple: the error in determining age in studies is even more than half a billion years. So nothing has happened yet. That doesn't change the fact that this is a real old star, though.
It contains very little oxygen and 250 times less iron than the sun. Methuselah, as one of the first races, did not contain any impurities of the new elements that had gone into space as a result of the collapse of the star. However, he was not born in the Milky Way, but in the galaxy that was swallowed by it.
The next miracle is located on the other side of the Milky Way's core, 70,000 light-years from Earth, so it is difficult to observe this object. However, in 2017, astronomers did find that some of the star clusters in the spiral arms behaved strangely, as if they were rippling. After some additional research, it turned out that these places had scars from the collision. In these regions, the gas is disturbed and aggregates into new stars.
The culprit is the Sagittarius dwarf galaxy, which collided with the Milky Way at least five times as it passed through the ecliptic. Each such collision disrupts the gas and triggers the emergence of new stars. 378 trillion kilometers from the edge of our galaxy has the Solar System 20 - trappist-1。All seven of its planets are terrestrial planets, and some of them are even located in the habitable zone. This is definitely a record.
Scientists have used the James Webb telescope to build climate models for the system's three planets. The star itself is almost twice as hot as the Sun, heated up to just over 2,000 degrees and 10 times lighter, but in terms of density it already surpasses ours. However, there are many such stars in the universe. More unique luminaries are located in the very center of the Milky Way, not far from the supermassive black hole Sagittarius A*.
For example, S62 in Sagittarius. It is very close to the black hole, only 17 astronomical units apart. At the pinnacle of this approach, it accelerates to an incredible 67%。Another star, S4714, orbits a black hole by accelerating to 8000 kilometers per second in just four years.