Chile’s Ancient Desert Calendar by World Book | Wednesday, September 12, 2018 | High in the Atacama Desert of Chile, a system of stone pillars and rock piles called saywas was... Science, Space. archaeologyastronomyChileSouth America Read More Moon, Sun, Eclipse by World Book | Tuesday, August 22, 2017 | Yesterday, on August 21, huge crowds gathered across the United Statesto watch the solar eclipse... Current Events, Science, Space. astronomysunmooneclipse Read More