What are those red filaments in the sky? They are a rarely seen form of lightning confirmed only about 30 years ago: red sprites. Recent research has shown that following a powerful positive cloud-to-ground lightning strike, red sprites may start as 100-meter balls of ionized air that shoot down from about 80-km high at 10 […]
Wikipedia picture of the day on March 30, 2021: Almandine on gray-green schist from North Tyrol, Austria. https://ift.tt/3m2Rzne
Wikipedia article of the day is Dresden Triptych. Check it out: https://ift.tt/3cwHPyw Summary: The Dresden Triptych is a very small hinged-triptych altarpiece signed and dated 1437 by the Early Netherlandish painter Jan van Eyck. It consists of five paintings: one central and four on two double-sided wings. It may have been intended as a portable […]
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This artist’s concept is of a Jupiter-mass planet orbiting the nearby star Epsilon Eridani. via NASA https://ift.tt/39qrCJ7
“Artistic temperament is the disease that afflicts amateurs.” – Gilbert K. Chesterton
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Who knows what evil lurks in the eyes of galaxies? The Hubble knows — or in the case of spiral galaxy M64 — is helping to find out. Messier 64, also known as the Evil Eye or Sleeping Beauty Galaxy, may seem to have evil in its eye because all of its stars rotate in […]