Beginnings, Earth and the Universe, Space-Time
Archives
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Astronomy, 19th Century, Modern Era (16th Century-Present)
Astronomy, Modern Era: 19th Century, Doppler Effect
Ancient Near East, Iron Age (c.1200-539 BC), Aramaeans, Syria (3300-00-637)
Ancient Near East, Syria: Iron Age (c.1200-539 BC), Aramaeans
Astronomy, 18th Century, Proper Motion
Astronomy, Modern Era: 18th-20th Century, Proper Motion
Astronomy, Basics, Precession and Nutation
Astronomy, Basics: Precession and Nutation
Astronomy, Basics, Equinoxes and Solstices
Astronomy, Basics: Equinoxes and Solstices
Astronomy, Basics, Conjunction and Opposition
Astronomy, Basics: Conjunction and Opposition
Astronomy, Basics, Motions of the Planets
Astronomy, Basics: Motions of the Planets
Astronomy, Basics, Solar System