Notebook

  1. Space

    50 years ago, scientists found a lunar rock nearly as old as the moon

    Studies of such rocks continue to reveal secrets about the moon’s history.

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  2. Physics

    50 years ago, superconductors were warming up

    Superconducting temperatures have risen by about 250 degrees since the 1970s, but are still too cold to enable practical technologies.

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  3. Health & Medicine

    50 years ago, computers helped speed up drug discovery

    In 1974, a computer program helped researchers search for promising cancer drugs. Today, AI is helping speed up drug discovery.

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  4. Anthropology

    50 years ago, evidence showed that an extinct human ancestor walked upright

    Fossil finds have since pushed back the ability of hominids to walk on two legs by millions of years.