Bob McDonald's blog: Humanity gets its first glimpse of what happens when an aging star overwhelms a close orbiting planet, just as our sun is expected to eventually do with Mercury, Venus and Earth.
in Hawaii, the researchers were able to examine the star in different wavelengths of visible light to analyze its chemical composition. They found signs of molecules that can only exist at cold temperatures, which one of the study's authors described as "peculiar."
As a red giant, the sun will be about the size of the orbit of the Earth, possibly bigger, which means Mercury, Venus and Earth will all be consumed.
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