About 500 million years from now, the sun will cool down, its envelope will expand many times, its diameter will increase several times more than it is now, and it will become a red monster. Once the outer part is detached from the sun, it will form a planetary nebula, and the center will become a kind of stellar remnant called the white dwarf. In the distant future, stars passing close to the Sun will reduce the bonds of its traveling planets with it.
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nice photograph