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"Atoms synthesized in the interiors of stars are commonly returned to the interstellar gas… The atoms returned are, naturally, those most readily made in the thermonuclear reactions in stellar interiors:…. All the elements of the Earth except hydrogen and some helium have been cooked by a kind of stellar alchemy billions of years ago in stars, some of which are today inconspicuous white dwarfs on the other side of the Milky Way Galaxy. The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff."

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Theme by: Miguel
  1. killersvanilla: Fossils push back dawn of life by 1.5bn years Paleontologists recently found fossils in Africa that indicate that multicellular life evolved on Earth 1.5 billion years before previously thought: “The cursor on the origin of complex multicellular life is no longer 600 million years ago, as has long been maintained, but more like 2.1 billion years,” said Abderrazak El Albani, a researcher at the University of Poitiers and lead author of the study. The findings were published in the British journal Nature. Up to now, conventional scientific wisdom held that the planet was populated only by single-celled microbes until the so-called Cambrian explosion, a major surge of biodiversity that began some 600 million years ago.

    killersvanilla:

    Fossils push back dawn of life by 1.5bn years

    Paleontologists recently found fossils in Africa that indicate that multicellular life evolved on Earth 1.5 billion years before previously thought:

    “The cursor on the origin of complex multicellular life is no longer 600 million years ago, as has long been maintained, but more like 2.1 billion years,” said Abderrazak El Albani, a researcher at the University of Poitiers and lead author of the study.

    The findings were published in the British journal Nature.

    Up to now, conventional scientific wisdom held that the planet was populated only by single-celled microbes until the so-called Cambrian explosion, a major surge of biodiversity that began some 600 million years ago.

    2. Reblogged: killersvanilla