Twenty-two codes were added to the ASCL in March 2026:
AstroQ: Optimization-based scheduler for astronomical observations
BAHAMAS: Bayesian inference of stochastic gravitational-wave backgrounds
BaSIL: Bayesian Spectral-cube Inference and Learning
ascl.net/wordpress/20...
#astronomy
🔭
A towering rocket ignites and lifts off from acoastal launch pad at dusk, its bright plume of fire and exhaust illuminating thick clouds of smoke spreading accross the ground.
🔭 Liftoff! Returning to the Moon
Image Credit & Copyright: NASA/Bill Ingalls; Text: Ogetay Kayali (MTU)
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Now *that's* good marketing! Kudos, @cpsc.gov!
What a lovely shot!
Proud, and ready to snap your head off if you dare get close...! 😄
Lovely shot!
Don't we all!! 😄
Thanks very much, Rob!
Thanks!
Thanks!
Glad you like it! He's very pretty to me, and the side-eye... the side-eye... ! 😆
A small gray-brown Gray-backed Cisticola perches on a black wire against a clear blue sky, back to the camera but with its head turned back and tilted downward as it peers past its wire perch. Fine streaking marks the crown and back, and the bird’s slim bill points toward the ground while its pinkish legs grip the thick cable.
🦉🪶
It is as he thought; his cell phone slipped out of his pocket.
Gray-backed Cisticola
#GreyDay #BirdOfTheDay
Thank you very much, Alan!
🦉🪶
Four #GreyDay #Birds
Gray-backed Cisticola
Grey-crowned Crane
Grey Heron
Gray Catbird
#BirdOfTheDay
Theres SO much discovery to be made in “long timescale” astronomy right now!
gizmodo.com/astronomers-...
Beautiful shot!
🦉🪶
These birds have a question and a comment.
Song Sparrow
Savannah Sparrow
Oh my gosh, that's lovely!
Lovely shot. I love pintails; so elegant. Clearly they are on the A list for party invitations.
Pretty pretty pretty!!
Wonderful shot, and now I need a sweater!
A Field Sparrow sits on a slender branch among sunlit green leaves, facing right in warm golden light, its back to the viewer. Its soft gray breast, warm reddish crown, and delicate pink bill glow in the evening sun while the small bird balances lightly with its tail trailing behind, its head turned to its right shoulder so it is looking at the camera, clearly a lady with an attitude.
A Black-throated Sparrow perches on a smooth gray branch, body angled left so we see his chest; he is looking over his left shoulder. The small desert sparrow shows a pale gray face with bold black-and-white stripes and a sharply defined triangular black throat patch above a soft gray belly. Fresh green leaves frame the branch against a softly blurred background. The little bird is a fella that was in the mood.
A Song Sparrow perches on a lichen-dusted branch against a bright blue sky, its brown streaks and central chest spot clearly visible. Facing left with an upright stance and its back to the viewer, the sparrow shows layered feather patterns along its back and tail while pale green lichens decorate the branch beneath its feet. The bird is looking over its left shoulder at the camera, alert and composed. Don’t just stand there, let’s get to it.
A Savannah Sparrow stands atop a pale yellow post beside deep blue water, facing right, tummy and chest visible, with its tail extended behind it. Its finely streaked breast and yellow eyebrow catch the warm sunlight while the background fades into a smooth blue blur. Balanced neatly on the flat perch, the small sparrow on its tiny stage is framed by light and open space. It looks sharply to the left to strike a pose; there’s nothing to it.
🦉🪶
Four #SongBirds #PerfectlyPerched
Field Sparrow
Black-throated Sparrow
Song Sparrow
Savannah Sparrow
#BirdOfTheDay
#sparrows
Lovely shot!
Excellent! Thanks for sharing it.
The featured image shows a starfield surrounding a nebula that resembles the human brain. A blue outer oval has a bright nebulosity inside. Please see the explanation for more detailed information.
🔭 The Cranium Nebula from the Webb Telescope
Image Credit: NASA, ESA, CSA, STScI; Processing: J. DePasquale (STScI)
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🚨 Job vacancy!
We are recruiting a Computing Officer for the School of Physics and Astronomy at St Andrews ⚛️🔭
High-Performance Computing is critical to our work on understanding the Universe, including the search for life on other planets. 🪐🧑💻🖥️
www.vacancies.st-andrews.ac.uk/Vacancies/W/...
Radcliffe graduation photo of Ellen Dorrit Hoffleit, who is seated and wearing a cap and gown.
Astronomer Ellen Dorrit Hoffleit was born #OTD in 1907. She discovered more than 1,000 new variable stars over the course of her career, worked in the Harvard and Yale observatories, and edited the Bright Star Catalog. 🧪 🔭 👩🔬
Image: American Association of Variable Star Observers
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#Birds with their #WingsOpenNotFlying
Eurasian Griffon
Black Vulture
Turkey Vulture
Exceeding wet Black Vulture
#BirdOfTheDay