A tragic end for the sun.. it will swallow the earth and then die
Nothing in this world lasts forever, not even the sun in the sky, which would likely swallow up the earth, before turning into a faint white dwarf.
Recent research using data from the European Space Agency's Gaia satellite has shed light on the eventual fate of our sun, which will swell into a massive red giant, likely to swallow up Earth, before eventually dimming into a faint white dwarf.
Although astronomers have a solid understanding of the life cycles of stars in general, the details of the temperatures that stars reach and how long they take to transition from one life stage to another are still not fully understood.
To get a better picture of overall stellar evolution, data on hundreds of millions of stars observed by Gaia have been collected and analyzed to gain a deeper understanding of what we can expect for our star's future.
Data from Gaia includes the spectra of huge numbers of stars, which show how light is split into different wavelengths which can correlate a star's chemical composition to its temperature. different.
To understand the fate of our sun, researchers looked at stars that are similar to our sun in terms of mass and chemical composition, but of different ages, and this gave them a blueprint for the past and possible future that we can expect for our sun.
"From this work, it is clear that our sun will reach a maximum temperature at about 8 billion years of age, then it will cool down and increase in size, becoming a red giant star about 10-11 billion years old, and the sun will reach the end of its life after This stage, when it finally becomes a faint white dwarf."
The identification of Sun-like stars is useful in the search for habitable exoplanets, as Sun-like stars can host Earth-like planets.
"If we don't understand our Sun - and there are many things we don't know about it - how can we expect to understand all the other stars that make up our wonderful galaxy," says Orla Crevi, one of the researchers at the European Space Agency.
https://al-ain.com/article/european-space-life-sun-ends-age-11-billion