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Huge stone structures in Saudi Arabia might be some of most established monuments on the planet

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They number in the hundreds, can be bigger than a NFL football field and are found across Saudi Arabia, remembering for the incline of a fountain of liquid magma. Rambling stone structures announced in 2017 presently give off an impression of being the absolute most seasoned landmarks on the planet, going back about 7,000 years, archeologists currently report.

Another investigation of the secretive stone structures — once called “gates” yet now alluded to as “mustatils,” the Arabic word for “square shape” — proposes they were utilized for customs; and radiocarbon dating of charcoal found inside one of the structures shows individuals fabricated it around 5000 B.C., a group of specialists report in an article as of late distributed in the diary The Holocene.

“The mustatil phenomenon represents a remarkable development of monumental architecture, as hundreds of these structures were built in northwest Arabia,” the researchers wrote in their paper. “This ‘monumental landscape’ represents one of the earliest large-scale forms of monumental stone structure construction anywhere in the world.”

Custom use

The structures are produced using low stone dividers that structure what frequently resembles a field door from above (henceforth their previous name). They go in size with some estimating under 49 feet (15 m) long and the biggest estimating around 2,021 feet (616 m) long.

At the point when previously built, a considerable lot of the mustatils would have had a stage on either end of the “rectangle,” the specialists found while breaking down a portion of the structures. On the foundation of one mustatil, they found an artwork with mathematical structures on it. The plan of the composition “is not currently known from other rock art contexts” in the area, the group wrote in the diary article.

It “is quite possible that these structures would have been visually spectacular, and perhaps quite extensively painted,” study lead creator Huw Groucutt, the pioneer of the Extreme Events Group at the Max Planck Institute for Chemical Ecology in Germany, disclosed to Live Science.

Barely any curios were found inside the mustatils, recommending that the structures were not involved or utilized all year. Likewise, “the long walls [of the mustatils] are very low and typically lack obvious entry points, and therefore do not seem to be obviously functional as something like animal corrals,” the group composed.

All things considered, if the mustatils were in certainty the locales of customs, it’s as yet not satisfactory what sorts of ceremonies would have occurred there.

Regional markers?

Today, the structures are found in various exceptionally parched spots including the southern Nefud Desert (where Groucutt’s group directed their hands on work) just as fruitless, aloof magma fields.

Yet, in the event that the structures were to be sure made around 5000 B.C., they would have been being used when the atmosphere in Saudi Arabia was wetter than it is today. “Somewhere in the range of 10,000 and 6,000 years back, “Between 10,000 and 6,000 years ago, “the Arabian Peninsula saw the most recent of the ‘Green Arabia’ periods, when increased rainfall transformed this generally arid region,” the specialists wrote in the paper.

At that point, individuals in the area would in general be pastoralists — depending on crowds of trained creatures for food — while likewise chasing some wild creatures, the specialists wrote in the paper. Accordingly, the mustatils could have been a path for the individuals to check their region, the specialists said.

The mustatils may “represent one manifestation of the increasing territoriality that developed, induced by factors such as competition for grazing land in the challenging and unpredictable environments of Arabia,” they composed.

In any event, when the atmosphere in Arabia was at its wettest, “the environment would have been highly seasonal and droughts would have occurred,” they included.

Analysts respond

Yorke Rowan, a senior examination partner with the University of Chicago’s Oriental Institute, lauded the exploration however noticed that there are more established instances of enormous scope great stone development taking note of that “kites” (gigantic stone structures used to chase creatures) seem, by all accounts, to be more established.

Gary Rollefson, an emeritus teacher at Whitman College in Washington, who was not engaged with this exploration, called the finds “completely exciting.” He noticed that, notwithstanding mustatils, there are different kinds of rock structures in the territory that may have additionally been places for custom movement.

“The paper by Groucutt et al. is an admirably detailed account of one enigmatic construction type — the mustatil rectangle — although there are several other stunning architectural patterns that reflect large-scale human cooperative ventures that have little apparent utilitarian purpose beyond social identity, social reaffirmation and social memory,” Rollefson told Live Science.

Matthew Ronald grew up in Chicago. His mother is a preschool teacher, and his father is a cartoonist. After high school Matthew attended college where he majored in early-childhood education and child psychology. After college he worked with special needs children in schools. He then decided to go into publishing, before becoming a writer himself, something he always had an interest in. More than that, he published number of news articles as a freelance author on apstersmedia.com.

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Researchers Achieve Breakthrough in Quantum Simulation of Electron Transfer

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A team at Rice University has achieved a significant breakthrough in simulating molecular electron transfer using a trapped-ion quantum simulator. Their research offers fresh insights into the dynamics of electron transfer and could pave the way for innovations in molecular electronics, renewable energy, and cc.

Electron transfer is a critical process underpinning numerous physical, chemical, and biological phenomena. However, the complexity of quantum interactions has long made it a challenging area to study. Conventional computational techniques often struggle to capture the full range of variables influencing electron transfer.

To address these challenges, the researchers developed a programmable quantum system capable of independently controlling key factors such as donor-acceptor energy gaps, electronic and vibronic couplings, and environmental dissipation. Using ions trapped in an ultra-high vacuum and manipulated by laser light, the team demonstrated real-time spin dynamics and measured electron transfer rates.

“This is the first time that this kind of model has been simulated on a physical device while incorporating the role of the environment and tailoring it in a controlled way,” said Guido Pagano, lead author of the study published in Science Advances.

Pagano added, “It represents a significant leap forward in our ability to use quantum simulators to investigate models and regimes relevant to chemistry and biology. By harnessing the power of quantum simulation, we hope to explore scenarios currently inaccessible to classical computational methods.”

Through precise engineering of tunable dissipation and programmable quantum systems, the researchers explored both adiabatic and nonadiabatic regimes of electron transfer. The experiment not only illuminated how quantum effects function under diverse conditions but also identified optimal parameters for electron transfer.

The team emphasized that their findings bridge a critical gap between theoretical predictions and experimental verification. By offering a tunable framework to investigate quantum processes in complex systems, their work could lead to groundbreaking advancements in renewable energy technologies, molecular electronics, and the development of novel materials.

“This experiment is a promising first step toward understanding how quantum effects influence energy transport, particularly in biological systems like photosynthetic complexes,” said Jose N. Onuchic, study co-author. “The insights gained could inspire the design of more efficient light-harvesting materials.”

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Crew Dragon Mission Delay Extends Astronauts’ Stay on ISS by a Month

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The next mission of SpaceX’s Crew Dragon to the International Space Station (ISS) has been postponed by a month due to delays in completing a new spacecraft. This decision will extend the stay of some astronauts aboard the ISS, including two who have been there since June.

NASA announced on December 17 that the Crew-10 mission, initially scheduled for February, is now set to launch no earlier than late March. The delay stems from the need for additional time to finish the fabrication, assembly, testing, and integration of a new Crew Dragon capsule.

Crafting the New Dragon Capsule

“Fabrication, assembly, testing, and final integration of a new spacecraft is a painstaking endeavor that requires great attention to detail,” said Steve Stich, NASA’s Commercial Crew Program Manager. He commended SpaceX’s efforts to expand the Dragon fleet and the flexibility of the ISS crew in accommodating the delay.

The new Crew Dragon will be the fifth in SpaceX’s lineup of crewed spacecraft, complementing its three cargo Dragon vehicles. According to Sarah Walker, SpaceX’s Dragon Mission Management Director, the spacecraft was near completion as of July and was undergoing final work at SpaceX’s California facility. It is now expected to arrive in Florida for final preparations in January.

While NASA did not specify the exact reasons for the delay, it considered other options, including using an existing Crew Dragon or making adjustments to the launch manifest, before opting for the delay. Existing capsules, including Freedom, currently at the ISS, and Endeavour and Resilience, which recently returned from other missions, were not available for a February launch.

Crew Adjustments and Extended ISS Stay

The Crew-10 mission will proceed with its planned roster: Anne McClain and Nichole Ayers from NASA, Takuya Onishi from JAXA, and Kirill Peskov from Roscosmos.

The delay has implications for the Crew-9 mission, launched in late September with NASA astronaut Nick Hague and Roscosmos cosmonaut Aleksandr Gorbunov. They were joined by NASA astronauts Suni Williams and Butch Wilmore, who have been on the station since June after arriving on Boeing’s CST-100 Starliner.

Originally, Williams and Wilmore were scheduled to stay for just over a week, but their time on the ISS will now extend to about 10 months. NASA had earlier decided to return the uncrewed Starliner to Earth due to concerns with its thrusters.

Despite the delay, NASA emphasizes that Williams and Wilmore are not “stranded” as they can return to Earth in an emergency. Their extended stay is tied to the decision to use the new Crew Dragon for the upcoming mission, as preparing another vehicle was deemed impractical.

Looking Ahead

Assuming the Crew-10 launch proceeds in late March, the Crew-9 spacecraft is expected to return to Earth in early April after a handover period. This delay underscores the complexity of preparing new spacecraft while ensuring the safety and readiness of all missions.

As the new Crew Dragon nears completion, SpaceX and NASA remain focused on maintaining seamless operations aboard the ISS and advancing human space exploration.

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Boeing Starliner crews will have an extended stay on the ISS due to SpaceX’s delay

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NASA said on Tuesday that it has decided to postpone the launch until at least late March because SpaceX’s upcoming crew rotation mission to the ISS would utilize a new Dragon spacecraft that won’t be ready by the initial February launch date.

For the two NASA astronauts who traveled to the ISS last June on Boeing’s troubled Starliner spacecraft, that means an even longer stay. On June 5, they took off from Cape Canaveral, Florida, aboard a United Launch Alliance Atlas V on the first crewed mission of Starliner. They arrived at the ISS one day later for a stay that was only expected to last eight days.

NASA decided to be cautious and maintain Butch Wilmore and Suni Williams aboard the ISS while sending Starliner home without a crew due to issues with the spacecraft’s thrusters and helium leaks on its propulsion module.

In order for Williams and Wilmore to have a trip home, they will now be traveling on the SpaceX Crew Dragon Freedom, which traveled up to the ISS and docked in September, although with only two crew members on board rather than the customary four.

When Crew-10 arrived in late February, the mission’s goal was to take a trip home.

However, NASA confirmed that Crew-10 will not fly with its replacement crew until late March. This allows NASA and SpaceX time to prepare the new Dragon spacecraft, which has not yet been given a name, for the voyage. Early January is when it is anticipated to reach Florida.

“Fabrication, assembly, testing, and final integration of a new spacecraft is a painstaking endeavor that requires great attention to detail,” stated Steve Stich, the program manager for NASA’s Commercial Crew. “We appreciate the hard work by the SpaceX team to expand the Dragon fleet in support of our missions and the flexibility of the station program and expedition crews as we work together to complete the new capsule’s readiness for flight.”

It would be the fifth Dragon spacecraft with a crew. Its fleet of four current Dragon spacecraft has flown 15 times, sending 56 passengers to space, including two who were two-time fliers. The first crewed trip took place in May 2020. Each spacecraft’s name is chosen by the crew on its first flight.

According to NASA, teams considered using the other crew Dragon spacecraft that were available but decided that rescheduling Crew-10’s launch date was the best course of action.

JAXA (Japan Aerospace Exploration Agency) astronaut and mission specialist Takuya Onishi will undertake his second spaceflight, Roscosmos cosmonaut and mission specialist Kirill Peskov will make his first spaceflight, NASA astronaut and commander Anne McClain will make her second spaceflight, and NASA astronaut and pilot Nichole Ayers will become the first member of the 2021 astronaut candidate class to reach space.

Given that Crew-9 won’t be able to return home until a handover period following Crew-10’s arrival, Wilmore and Williams may have to spend nearly nine months aboard as a result of the delay.

Rotations aboard the ISS typically last six months.

It is unclear when and how Starliner will receive its final certification so that it can start trading off the regular ferry service with SpaceX, as NASA’s Commercial Crew Program aims to have two providers for U.S.-based rotation missions with SpaceX and Boeing. This is due to the Crew Flight Test mission’s incomplete launch.

According to the terms of its contract, Boeing must deliver six missions to the ISS before the space station’s service ends, which is presently scheduled for 2030.

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