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Archaeologists Discovered The Remains Of A Large 2,500-Year-Old Ancient Egyptian Astronomical Observatory Used To Track The Movement Of The Sun And The Stars
The instrument, also known as a sloping shadow clock, was one of the most important ... They cataloged stars, mapped ...
WMOT17d
The Doomsday Clock has never been closer to metaphorical midnight. What does it mean?
The Bulletin hopes the movement of the clock's second hand — as incremental as it may seem — will serve as a wake-up call to ...