Both of Friday’s Astronomical Unit lectures are related to celestial phenomena not discernible to human senses. David ...
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Perihelion: What is it and when does it occur?
Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).
Peru's Ministry of Culture has confirmed a groundbreaking discovery that rewrites the history of ancient astronomy in the Americas. Archaeologists working at the Chankillo Archaeoastronomical Complex ...
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