Astrophysics Says the Sun Has Already Consumed Half Its Available Fuel – and the Sequence of Changes That Will Follow Over the Next Five Billion Years Has Been Mapped in Enough Detail to Make the Reading Uncomfortable
Most of us grow up with the Sun as this solid, background guarantee: it rises, it sets, life goes on. But astrophysics quietly adds a disturbing footnote to that comforting picture. Our star is not a permanent fixture; it is a nuclear engine halfway through its usable fuel, already evolving in ways that are subtle ...












