![]() ![]() That carbon somehow needed to avoid vaporizing as it traversed the void in particles of stardust, because it does not condense so easily. Before anything, it morphed into solid form within a million years after the Sun formed. It was not so easy for carbon that was scattered in space to make it over here. These grains would float around in interstellar space, and some got incorporated into the Solar Nebula.” “Carbon-rich stardust formed within the outflowing and cooling gases. “When presolar stars died, they expelled gases,” Jackie Li, who led the first study (published in Science Advances) and coauthored the second (in PNAS), told SYFY WIRE. That stardust survived a grueling journey all the way to Earth, and through processes that were anything but magic, Earth got just enough for life to thrive. Most carbon on Earth probably came from the interstellar medium, or material drifting between the stars in our galaxy, arriving around the time the solar system was still in its embryonic phase. Now, two new studies by the same team of scientists have found that we are probably made of stuff from real far out. ![]() ![]() So is everything else that lives on Earth, and that carbon came from somewhere. This isn’t really an existential question. If the stuff of stars runs through our veins, then where did all our stardust come from? ![]()
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