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Phil Plait

Bad Astronomy

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Comet C2023 A3 or Tsuchinshan-ATLAS.

Comet

2025 isn’t expected to be a great year for comets, but with luck, you might get a few good sightings.

Missed the Comet C/2023 A3? Don't Worry, Here are Other Comets to Look For

hurricane-from-space

Images from the International Space Station clearly shows Earth’s curvature.

Why Does Everything Look Flat Even Though the Earth Is Round?

ground-satelite-reciever

For less than $400, it's possible to observe places like the star-forming regions at the center of our galaxy.

How To Build A Backyard Radio Telescope

pikes-peak

Rocks can hold clues to history dating back hundreds of millions of years.

Evidence From Snowball Earth Found in Ancient Rocks on Colorado’s Pikes Peak

Spinning methods. (a) Manual thigh-spinning [64]; (b) Spindle-and-whorl “supported spinning” [68]; (c) “drop spinning” [66]; (d) the experimental spindles and whorls, the 3D scans of the pebbles and their negative perforations. The bottom pictures show Yonit Kristal experimenting spinning fibers with replicas of the perforated pebbles, using supported spinning and drop spinning techniques (photographed by Talia Yashuv). (Credit: Yashuv, Grosman, 2024, PLOS ONE)

Spinning A Yarn

Israeli archeologists use models based on their find to spin flax into yarn, indicating these pebbles were used as a version of a spinning wheel.

Pebbles Push Back the Invention of the Wheel to About 12,000 Years Ago

cuneform tablet

There is not a ton of evidence of what education looked like in ancient society, but we do know it existed - although not for everyone. 

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