50 Years Ago
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Agriculture
50 years ago, scientists ID’d a threat to California wine country
Fifty years after scientists identified the cause of Pierce's disease, which damages vineyards, there still isn't a cure.
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Earth
50 years ago, the sun’s influence on Earth’s lightning was revealed
The solar wind and sunspots seem to give lightning a boost. But exactly how solar activity stimulates strikes is an enduring mystery.
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Genetics
50 years ago, chimeras gave a glimpse of gene editing’s future
Advances in gene editing technology have led to the first successful transplant of a pig kidney into a human.
By Abby Wallace -
Health & Medicine
50 years ago, phantom pain was blamed on misfiring nerves
Researchers now know that the cause of post-amputation pain is more complex, which is leading to new treatments.
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Health & Medicine
50 years ago, margarine’s ‘healthy’ reputation began to melt away
In the 1970s, scientists began to suspect that margarine was bad for heart health. A key component, artificial trans fat, was a major factor.
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Animals
50 years ago, scientists wondered how birds find their way home
In the 1970s, lab tests hinted that birds can navigate using magnetic fields. New studies suggest that beak and eye proteins are behind the ability.
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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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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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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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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.
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Paleontology
50 years ago, trilobite eyes mesmerized scientists
Decades of research has confirmed that for such simple creatures, trilobites had astoundingly complex eyes.
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Physics
50 years ago, timekeepers deployed the newly invented leap second
After more than 50 years, metrologists will stop using the leap second to align the time kept by atomic clocks with the rate of Earth’s spin.