Introduction:
"Final Chapter Quest: The Sun's Grand Exit" - Explore a future where the Sun, the heart of our solar system, has stopped shining. Scientists at the University of Manchester have predicted a cosmic change, turning it into a bright planetary nebula. This study not only reveals the ultimate fate of our star, but also illuminates the universal cycle of stellar life and death. So let's begin.
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Our world revolves around the sun. When the sun rises it is day, when the sun sets it is evening and then night.
But what if the sun doesn't come out one day? If the sun dies, will this world also end?
You may have heard of broken wires. But have you ever thought that the sun, the largest star in the solar system, will one day disappear?
Scientists believe that the sun will die in the next five billion years. But till now they also don't know what will happen after that.
An international team of astronomers at Manchester University in the UK has tried to find out.
He has made some predictions about the changes that will take place during it.
According to these astronomers, when the time of the Sun's death approaches, it will turn into a bright ball of interstellar (between the stars) gas and dust.
This process is called a 'planetary nebula' or a cloud of gas and dust around the planet. This causes up to 90 percent change in the living star, resulting in the red giant Sun becoming a white sphere.
Albert Zijlstra, one of the authors of the study in Nature Astronomy, said: 'When a star dies, it gives off a lot of gas and bubbles called the envelope. This dust and gas accounts for half of the Sun's total mass and affects its core as well, weakening it gradually.
According to scientists, this happens when dust and gas from the star's hot interior glows for 10,000 years, an astronomically short period of time.
This is how the planetary nebula looks like. Many nebulae are so bright that they can be seen from millions of light years away.
Albert Zijlstra said: 'Not only can we detect the existence of a star that is hundreds of millions of years old, we have now also discovered how the Sun will react when it dies.'
Before the study was completed, scientists did not even know that this could happen to the Sun.
What will happen to the sun? Astronomers have developed a new data model to find out.
These data models make predictions based on the luminosity emitted by stars of different ages.
This new model sheds light on the inconsistencies between accumulated data and scientific hypothesis models.
"The data shows that you can get a bright planetary nebula from a low-mass star like the Sun," Albert said.
Earlier it was suggested that a bright nebula could be seen only from a star with at least twice the mass of the Sun.
Now it has been found that during the star's death, as the gas and dust escapes, it becomes three times hotter than previously estimated.
And so even a weak and low-mass star like the Sun becomes a nebula.
Albert concludes: 'The results of this research are excellent. Not only do we now know how to detect stars that are millions of years old in our Solar System or in distant galaxies, but we also now know what changes to the Sun when it dies. will happen.
Written by: BBC Urdu
Conclusion:
The eventual demise of the sun, a pivotal cosmic event anticipated to occur in about five billion years, heralds a transformation profound enough to reshape our understanding of stellar life cycles. Through the meticulous work of astronomers at Manchester University, a vivid picture emerges of the sun's transformation into a luminous planetary nebula, challenging previous notions that only stars at least twice the sun's mass could achieve such a spectacle. This groundbreaking research not only demystifies the sun's eventual fate but also enhances our ability to detect and comprehend the lifecycle of stars across the universe, marking a significant leap in astronomical science. The implications of this study extend beyond academic curiosity, offering a glimpse into the distant future of our solar system and the enduring cycles of birth, life, and death that govern the cosmos.
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