published on: 2016-06-03 07:22:56
Ancient Mayan observatory was used to track sun and Venus, researchers
apartmenttherapy: Make the Most of Every Inch: Ideas & Inspiration
lindahall: Wilhelm Schickard – Astronomer of the Day Wilhelm
newyorker: In 1974, four years after publishing his first children’s
life: Muhammad Ali, the legendary boxer who over the course
smithsonian: Today we reflect on the legacy of Muhammad Ali.