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The Earth is not flat
Sunday, November 17, 2024 by Russ Scritchfield
The perception of Earth's surface as flat is a fascinating phenomenon that often contradicts the well-established scientific understanding of our planet's round shape. This apparent contradiction has intrigued many and prompts an exploration into why everything seems flat despite the Earth b...
Edwin Hubble won the Great Debate
Thursday, November 7, 2024 by Richard Harris
I live in the Ozarks, just about 15 miles from Edwin Hubble's birthplace. The Hubble Space Telescope (HST) continues to fascinate me - both for the incredible views it has provided us and the profound questions it keeps raising about our universe. By the onset of the 20th century, the field o...
The colors of the moon
Thursday, July 25, 2024 by Alain Paillou
Even if the Moon appears essentially gray, we can distinguish fine nuances of color (mainly blue and orange; these colors are mostly due to metallic oxides present in silica beads) particularly on the seas. Bringing out the color of lunar soils is theoretically simple: increase the color saturati...