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NASA Astronomy Picture of the Day:

Wisps like this are all that remain visible of a Milky Way star. About 7,000 years ago that star exploded in a supernova, leaving the Veil Nebula. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to people living at the dawn of recorded history. Today, the resulting supernova remnant, also known as the Cygnus Loop, has faded and is now visible only through a small telescope directed toward the constellation of the Swan (Cygnus). The remaining Veil Nebula is physically huge, however, and even though it lies about 1,400 light-years distant, it covers over five times the size of the full Moon. The featured picture was taken in Kuwait in mid-2024 and features light emitted by hydrogen in red and oxygen in blue. In deep images of the complete Veil Nebula like this, even studious readers might not be able to identify the iconic filaments. Piece it All Together: Astronomy Puzzle of the Day

Photo by Abdullah Alharbi

Jacque Fresco (1916 – 2017) was an American futurist and self-described social engineer. He left home at the age of 14 and was Self-taught, He worked in a variety of positions related to industrial design. Fresco wrote and lectured his views on sustainable cities, energy efficiency, natural-resource management, cybernetic technology, automation, and the role of science in society. He was the founder of the Venus Project a still active non-profit organization that advocates for a resource-based economy and redesigns civilization.

Image source: Maj Borg, Minttu Mäntynen, Andrea Miconi, CC BY 1.0, via Wikimedia Commons.

NASA Astronomy Picture of the Day:

What's happening to this spiral galaxy? Although details remain uncertain, it surely has to do with an ongoing battle with its smaller galactic neighbor. The featured galaxy is labelled UGC 1810 by itself, but together with its collisional partner is known as Arp 273. The overall shape of UGC 1810 -- in particular its blue outer ring -- is likely a result of wild and violent gravitational interactions. This ring's blue color is caused by massive stars that are blue hot and have formed only in the past few million years. The inner galaxy appears older, redder, and threaded with cool filamentary dust. A few bright stars appear well in the foreground, unrelated to UGC 1810, while several galaxies are visible well in the background. Arp 273 lies about 300 million light years away toward the constellation of Andromeda. Quite likely, UGC 1810 will devour its galactic sidekick over the next billion years and settle into a classic spiral form.

Photo by Domingo Pestana

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NASA Astronomy Picture of the Day:

On May 7, the Sun setting behind a church bell tower was captured in this filtered and manipulated digital skyscape from Ragusa, Sicily, planet Earth. In this version of the image the colors look bizarre. Still, an intriguing optical illusion known as an afterimage can help you experience the same scene with a more natural looking appearance. To try it, find the sunspots of active region AR4079 grouped near the bottom of the blue solar disk. Relax and stare at the dark sunspot group for about 30 seconds, then close your eyes or shift your gaze to a plain white surface. In a moment an afterimage of the sunset should faintly appear. But the afterimage sunset will have this image's complementary colors and a more normal yellow Sun against a familiar blue sky.

Photo by Marcella Giulia Pace

Fresh water collecting in the valleys between sand dunes in the Lençóis Maranhenses National Park in Brazil. A layer of rock beneath the sand prevents the rain water from dissipating during the rainy season, resulting in a broad expanse of lagoons.

Julius Dadalti, CC BY-SA 4.0, via Wikimedia Commons. View source.

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