Jakarta, CNBC Indonesia – When viewed from the age of other objects around it, the Sun is 4.6 billion years old and will likely continue to shine for billions of years. In a number of different studies, researchers have attempted to predict the time of the death of the massive star and its impact on Earth.
It is likely that the Sun will live up to 10 billion years and changes will occur over time. For example, in 5 billion years, the Sun turns into a red giant, the core of the star shrinks but the outside will expand to Mars and swallow Earth in the process.
The note is that at that time, life on Earth may have ceased to exist. Because it is predicted that human life will only have 1 billion years left unless it finds a way out when the Sun’s brightness increases 10 percent per one billion years.
In one study, the Sun was thought to have turned into a planetary nebula, a glowing bubble of gas and dust. However, there is divided opinion that the Sun’s death should be more massive and an international team of astronomers in 2018 said the nebula was indeed a ‘corpse’ of the Sun and the most likely end of life.
“When a star dies, it releases gas and dust known as a shroud into space. The shroud can reach half the mass of the star. This will reveal the core of a star that at this point is still running, runs out of fuel, and then dies,” said one. author of the paper from the University of Manchester and astrophysicist Albert Ziljstar, quoted by Science Alert, Friday (1/10/2021).
He added after that the hot core would make the outgoing sheath glow in 10 thousand years. It is this period that makes the Nebula visible.
The research team is currently using data models, which predict the life cycles of different types of stars. Besides also knowing the brightness of the Nebula which is related to the mass of different stars.
Then what about the Earth when the Sun dies?
The Futurism page also predicts the state of the Earth, if it still exists, when the Sun dies. It is said that humans will not immediately know when the star stops shining.
It takes 8.5 minutes for us to realize what happened and when we know the Sun just disappears. Night will last forever and Earth will travel between stars at 18 miles per second.
The death of the sun will have an impact on space objects, such as the full moon that reflects the sun’s rays also becomes dark. Including all the planets in the solar system can no longer reflect sunlight.
The temperature on Earth will also begin to decrease and towards freezing. But it does take millions of years for this planet to solidify.
But in the Earth’s crust, temperatures will drop below 0 degrees in the first week and towards -100 degrees in the first year. Next the planet’s temperature stabilizes -240 degrees within a few million years, while the geothermal heat will still work.
Humans who survive will also move closer to the Earth’s heat. Photosynthesis which requires the Sun also stops and plants perish as well.
Most species will only survive for a short time and eventually disappear.
(roy/roy)
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