The mystery of whether the sun will become a black hole when its energy dims is answered. Photo: Reuters
JAKARTA – Scientists believe that black holes or black hole comes from a dead star. Because of this, not a few have concluded that when the sun has dimmed, it will also become a black hole. Is it true?
Xavier Calmet, professor of physics at the University of Sussex in England, says that sun will not become a black hole like other stars when it dies. This is because the Sun does not have enough abilities.
“It’s simple, the sun is not heavy enough to become a black hole,” he said as quoted by Live Science.
Calmet explained that there are several conditions that affect whether a star can become a black hole. It includes its composition, its rotation, the processes that govern its evolution, and the amount of mass it takes.
Currently, scientists think that a dying star must leave a stellar core many times the mass of the Sun to create a black hole.
“Stars with an initial mass greater than 20 to 25 times the mass of our Sun have the potential to experience the gravitational collapse necessary to form a black hole,” said Calmet.
To note, when a star runs out of nuclear fuel in its core, nuclear fusion of hydrogen into helium still occurs in its outer layers. So, as the star’s core collapses, its outer layers expand and enter what is known as the red giant phase.
When the Sun becomes a red giant in about 6 billion years, a billion years after it has run out of hydrogen in its core, it will expand all the way around the orbit of Mars, swallowing up the inner planets, possibly including Earth.
The red giant’s outer layers will cool over time and scatter to form a planetary nebula around the Sun’s fiery core. The massive star that creates the black hole goes through several periods of collapse and expansion, losing more and more mass each time.
2023-09-06 12:01:37
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