Public Posts

Three pewter measuring cups.

Agnes Monkelbaan, CC BY-SA 4.0, via Wikimedia Commons. View source.

James Abbott McNeill Whistler - (1834 - 1903) American Artist

Rohit Tandon on Unsplash

NASA Astronomy Picture of the Day:

As the crew of Artemis II travelled towards the Moon this week, Comet C/2026 A1 (MAPS) was expected to have its closest approach to the Sun on Monday. At this point, comet and Sun would be closer than half the distance separating the Earth and Moon. The comet did not survive; the featured video was made with 40 hours of data and shows the comet plunging toward the Sun, like a moth to a flame. Observing the comet so close to our bright star requires a coronagraph, an instrument that blocks the Sun and is used for studies of its corona. This composite video combines, starting from the outside, views from: the wider angle coronagraph (blue) and the narrower angle coronagraph (red), both on NASA's Solar and Heliospheric Observatory, and NASA's Solar Dynamics Observatory (black). We can see the comet approaching the sun, stretching, disappearing behind the coronagraph's occulting disk and reappearing as a cloud of debris that dissipates.

View NASA’s Astronomy Photo of the Day

Sun rises over a wintry landscape. Location, Langweerderwielen (Langwarder Wielen) and surroundings.

Dominicus Johannes Bergsma, CC BY-SA 4.0, via Wikimedia Commons. View source.

I shall gather myself into myself again,
I shall take my scattered selves and make them one,
Fusing them into a polished crystal ball
Where I can see the moon and the flashing sun.

I shall sit like a sibyl, hour after hour intent,
Watching the future come and the present go,
And the little shifting pictures of people rushing
In restless self-importance to and fro.

Sara Teasdale (1884 – 1933) was an American lyric poet. She was born Sarah Trevor Teasdale in St. Louis, Missouri, and used the name Sara Teasdale Filsinger after her marriage in 1914. She is the author of many poetry collections. In 1918 she was awarded both the Columbia Poetry Prize (now the Pulitzer) and the Poetry Society of America Prize for her "Love Songs" collection published in 1917 .... Read more

Gabriele Agrillo on Unsplash

NASA Astronomy Picture of the Day:

Ten thousand years ago, before the dawn of recorded human history, a new light would have suddenly have appeared in the night sky and faded after a few weeks. Today we know this light was from a supernova, or exploding star, and record the expanding debris cloud as the Veil Nebula, a supernova remnant. This sharp telescopic view is centered on a western segment of the Veil Nebula cataloged as NGC 6960 but less formally known as the Witch's Broom Nebula. Blasted out in the cataclysmic explosion, the interstellar shock wave plows through space sweeping up and exciting interstellar material. Imaged with narrow band filters, the glowing filaments are like long ripples in a sheet seen almost edge on, remarkably well separated into atomic hydrogen (red) and oxygen (blue-green) gas. The complete supernova remnant lies about 1400 light-years away towards the constellation Cygnus. This Witch's Broom actually spans about 35 light-years. The bright star in the frame is 52 Cygni, visible with the unaided eye from a dark location but unrelated to the ancient supernova remnant.

Photo by Martin Pugh (Heaven's Mirror Observatory)

Entrance to U-Bahnhof Zoologischer Garten, Berlin. Taken by Willem van de Poll in November 1935.

Willem van de Poll, CC0, via Wikimedia Commons. View source.