The Scale of the Universe: bellissimo!

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The Final Scream

Astronomers See a Star's Final Scream Into a Black Hole Halfway Across The Universe

Light that traveled for more than 8.5 billion years to reach us was the last gasp of a dying star as a black hole swallowed it.

Two separate teams of scientists determined that a mysterious glimmer that appeared in the sky in February 2022, named AT2022cmc, was the astrophysical jet that erupted from the massive black hole as the shredded star vanished beyond its event horizon.
It's incredibly rare for us to catch one of these meals in the act, and AT2022cmc is now the most distant we've ever seen.

:bye: :bye:

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A new supercomputer simulation animates the evolution of the universe

The infant universe transforms from a featureless landscape to an intricate web in a new supercomputer simulation of the cosmos’s formative years.

An animation from the simulation shows our universe changing from a smooth, cold gas cloud to the lumpy scattering of galaxies and stars that we see today. It’s the most complete, detailed and accurate reproduction of the universe’s evolution yet produced, researchers report in the November Monthly Notices of the Royal Astronomical Society.

This virtual glimpse into the cosmos’s past is the result of CoDaIII, the third iteration of the Cosmic Dawn Project, which traces the history of the universe, beginning with the “cosmic dark ages” about 10 million years after the Big Bang. At that point, hot gas produced at the very beginning of time, about 13.8 billion years ago, had cooled to a featureless cloud devoid of light, says astronomer Paul Shapiro of the University of Texas at Austin.


:D 👏

Radiation (blue) emanates from dense filaments of stars and galaxies (white) in this snapshot from a new simulation of the early universe.
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Gli Album Panini!!

Ancient grammatical puzzle that has baffled scientists for 2,500 years solved: Experts finally solve the puzzle by decoding a rule taught by the 'father of linguistics' Panini - Crast.net

A grammatical puzzle that has baffled scholars since the fifth century BCE has finally been solved.
Dr Rishi Rajpopat, an Indian PhD student at the University of Cambridge, has decoded a rule formulated by the ‘Father of Linguistics’ Panini.
This rule is a fundamental part of a simple grammatical system created by Pāṇini, called the ‘Language Machine’, intended to teach the sacred Sanskrit language of India.

:D
:clap:

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This Stunning Dark Nebula Looks Like a Cosmic Sentinel Watching The Stars

Look deep enough into the darkness of space, you'll find all manner of shapes that stir the imagination. Keep staring, you'll quickly learn that our Universe can be so much stranger and more wondrous than anything the human mind can dream of.

A recent image released by the European Southern Observatory (ESO) has captured just a small glimpse of that on a cosmic scale: a dark nebula 7 light-years long looking like a titanic lighthouse keeping watch over the cold, black void of space. Perhaps it's a cyclopean giant seeking planets to devour. Or death itself, haunting the heavens, cloaked in shadow.


:D:clap:

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The new image of the Cone Nebula was released in celebration of 60 years of the European Southern Observatory collaboration
 

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We Finally Know How Ancient Roman Concrete Was So Durable

The ancient Romans were masters of building and engineering, perhaps most famously represented by the aqueducts. And those still functional marvels rely on a unique construction material: pozzolanic concrete, a spectacularly durable concrete that gave Roman structures their incredible strength.

Even today, one of their structures – the Pantheon, still intact and nearly 2,000 years old – holds the record for the world's largest dome of unreinforced concrete.

The properties of this concrete have generally been attributed to its ingredients: pozzolana, a mix of volcanic ash – named after the Italian city of Pozzuoli, where a significant deposit of it can be found – and lime. When mixed with water, the two materials can react to produce strong concrete.

But that, as it turns out, is not the whole story. An international team of researchers led by the Massachusetts Institute of Technology (MIT) found that not only are the materials slightly different from what we may have thought, but the techniques used to mix them were also different.


:clap: :D

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Sempre in topic!

The Universe Is More in Our Hands Than Ever Before

At the turn of the 21st century, astrophysicists opened a new and unexpected era for themselves: large-scale laboratory experimentation. High-powered machines, in particular some very large lasers, have provided ways to re-create the cosmos, allowing scientists like myself to explore some of the universe’s most dramatic environments in contained, controlled settings. Researchers have learned to explode mini supernovas in their labs, reproduce environments around newborn stars, and even probe the hearts of massive and potentially habitable exoplanets.

:D :clap:

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Archaeologists Find Hidden Ruins of 'Complete' Roman-Era City in Egypt

Egyptian archaeologists said they had discovered an 1,800-year-old "complete residential city from the Roman-era" in the heart of the southern city of Luxor.

The city, dating to the second and third centuries, is the "oldest and most important city found on the eastern bank of Luxor," according to Mostafa Waziri, head of Egypt's Supreme Council of Antiquities.

Archaeologists discovered "a number of residential buildings" as well as "two pigeon towers" – a structure used to house pigeons or doves – and a "number of metal workshops," Waziri said in a statement.
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SE CONTINUANO A TROVARE TUTTI ‘STI REPERTI LA METRO C DI ROMA VERRÀ TERMINATA L’ANNO DEL MAI – DURANTE GLI SCAVI PER LA NUOVA LINEA DELLA METROPOLITANA È STATO RITROVATO UN VETRO DORATO CHE RAFFIGURA LA PERSONIFICAZIONE DI ROMA – PER LA FUNZIONARIA ARCHEOLOGA DELLA SOPRINTENDENZA, MORRETTA: "È UN REPERTO STRAORDINARIAMENTE FINE NELLA SUA ESECUZIONE MOLTO RARO…"

Un raffinato reperto dell’antica Roma, una personificazione della Città Eterna, è stato recentemente scoperto durante gli scavi della metro C di Roma, presso la stazione di Porta Metronia.

Si tratta del primo caso al mondo in cui questo tema iconografico è stato trovato su un vetro dorato. La funzionaria archeologa della Soprintendenza speciale di Roma, Simona Morretta, descrive il reperto come “straordinariamente fine nella sua esecuzione”.

“Già un vetro dorato è un reperto molto raro – spiega all’Ansa – ma questo non ha confronto allo stato attuale degli studi. Non si era mai trovato un vetro dorato con la personificazione della città di Roma”.


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Incredible Footage Shows Planets Circling a Star Light-Years Away

A new video shared on YouTube is one of the most amazing things we've ever seen in planetary science.

The video shows four dots of light moving in partial concentric circles around a black disk at their center. What you're actually looking at is a planetary system.

The four dots are exoplanets, with the black disk obscuring their star, 133.3 light-years away from Earth. The partial circles are their orbital motions, a time-lapse compiled from 12 years of observations.


:D :clap:

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