Composed of micro diamonds, aluminum oxide, and silicon carbide, the isotopic distribution of these grains bore the telltale marks of their birth: ancient supernovas and red giant stars, that shone brightly and then flickered out, billions of years ago, b
Composed of micro diamonds, aluminum oxide, and silicon carbide, the isotopic distribution of these grains bore the telltale marks of their birth: ancient supernovas and red giant stars, that shone brightly and then flickered out, billions of years ago, b
由微金刚石、铝氧化物、碳化硅组成的这些微粒的同位素分布透露出它们的诞生：那些数十亿年前，在太阳系尚未诞生时，曾经闪耀并最终熄灭的古老超新星和红巨星。