An article from Science News Jan 2020
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7-billion-year-old stardust is the oldest solid material on Earth Published in 2020
Cosmochemists have discovered the oldest solid material known to exist on Earth. The material, stardust, consists of silicon carbide grains measuring around one micrometer in size. The grains date back approximately 7 billion years, or about 2.5…
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Abel, Neils Henrik (1802–1829)
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Aiken, Howard Hathaway (1900–1973)
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Alder, Kurt (1902–1958)
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Aleksandrov, Pavel Sergeevich (1896–1982)
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Amsler-Laffon, Jakob (1823–1912)
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Andrews, Thomas (1813–1885)
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Anthemius (lived 5th–6th century AD)
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