'Einstein tile', the 13-sided shape that forms an unrepeatable pattern

A 13-sided tile called “the hat” forms a pattern that covers an infinite plane, yet it cannot repeat, making it a long-sought shape known as an “einstein.” A sample of that pattern is shown here...

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Watch out for the “Beaver blood moon”; last total lunar eclipse until 2025

The Beaver blood moon, the upcoming celestial event visible to skywatchers from East Asia to North America will be treated to the rare spectacle on Tuesday, weather permitting, as the Earth, moon a...

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The Midnight Sun -Tingling Mind 15

Is there a place where the sun never sets? Yes, there is places where the Sun Never Sets and this phenomenon is known as "The Midnight Sun". The name can be self-explanatory, but ...

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