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NASA Astronomy Picture of the Day:

Why would the sky glow like a giant repeating rainbow? Airglow. Now, air glows all of the time, but it is usually hard to see. A disturbance however -- like an approaching storm -- may cause noticeable rippling in the Earth's atmosphere. These gravity waves are oscillations in air analogous to those created when a rock is thrown in calm water. The long-duration exposure nearly along the vertical walls of airglow likely made the undulating structure particularly visible. OK, but where do the colors originate? The deep red glow likely originates from OH molecules about 87 kilometers high, excited by ultraviolet light from the Sun. The orange and green airglow is likely caused by sodium and oxygen atoms slightly higher up. The featured image was captured during a climb up Mount Pico in the Azores of Portugal. Ground lights originate from the island of Faial in the Atlantic Ocean. A spectacular sky is visible through this banded airglow, with the central band of our Milky Way Galaxy running up the image center, and M31, the Andromeda Galaxy, visible near the top left. APOD Turns 30!: Free Public Lecture in Anchorage on June 11

Photo by Miguel Claro (TWAN); Rollover Annotation: Judy Schmidt

Photo art based on a picture of a rolling gate at blast furnace 5 in the Duisburg-Nord Landscape Park, Duisburg, North Rhine-Westphalia, GermanyThe original shot used the creative technique of intentional camera movement. This image was mirrored and recomposed to achieve the symmetry effect.

Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons. View source.

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

The Things I Love

A butterfly dancing in the sunlight,
A bird singing to his mate,
The whispering pines,
The restless sea,
The gigantic mountains,
A stately tree,
The rain upon the roof,
The sun at early dawn,
A boy with rod and hook,
The babble of a shady brook,
A woman with her smiling babe,
A man whose eyes are kind and wise,
Youth that is eager and unafraid—
When all is said, I do love best
A little home where love abides,
And where there’s kindness, peace, and rest.


Scottie McKenzie Frasier (1884-1964) was an American teacher, poet, author, newspaper editor, lecturer, and socialite. She was born in Talladega, Alabama. She did newspaper work for four years in New York City and while there, she became a suffrage advocate and a member of the League of Women Voters She moved back to  to Dothan, Alabama where she went on to be a co-founder of the Dothan Equal Suffrage Association. Frasier's activities during World War I included being a Four Minute Speaker, a group of volunteers authorized by United States President Woodrow Wilson, to give four-minute speeches on topics given to them by the Committee on Public Information (CPI).

This poem is in the public domain.

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