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Oldest Stars Found Near Center of Milky Way Came Shortly After Big Bang, Scientists Say

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Scientists at Australian National University may have discovered the oldest stars in the Milky Way, formed before the galaxy itself, a discovery they say is as likely as finding a “needle in a haystack.” The research adds to scientists’ growing understanding of how the galaxy came to be. 

What researchers described as a groundbreaking study, published Wednesday in the journal Nature, details the discovery of nine stars found at the center of the Milky Way with traits suggesting they were some of the first stars ever formed. Scientists said the stars dated to roughly 13.6 billion years ago or some 200 million years — a relatively short time frame when talking about the universe — after the Big Bang, the leading theory of how the universe was born. 

“These pristine stars are among the oldest surviving stars in the Universe, and certainly the oldest stars we have ever seen,” Louise Howes, the study’s lead author, said in a statement. 

The fact that these stars were discovered in the center of the Milky Way alone suggests they’re older than most stars. Howes said the Milky Way formed around the galaxy’s oldest stars. 

The makeup of a really old star: These newly discovered stars are mostly pure energy, with low levels of carbon and iron, which contradicts scientists’ theory the early universe was laden with these elements. It’s long been believed the first stars exploded as a supernova, which would make the stars dense with heavy elements and less energy. 

 

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https://www.mic.com/articles/128378/oldest-stars-found-near-center-of-milky-way-came-shortly-after-big-bang-scientists-say#.SUjOrAu0j

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Bactrian Camels

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The Bactrian camel, also known as the Mongolian camel or domestic Bactrian camel, is a large even-toed ungulate native to the steppes of Central Asia. It has two humps on its back, in contrast to the single-humped dromedary camel. Its population of two million exists mainly in the domesticated form. Their name comes from the ancient historical region of Bactria.

Domesticated Bactrian camels have served as pack animals in inner Asia since ancient times. With its tolerance for cold, drought, and high altitudes, it enabled the travel of caravans on the Silk Road. Bactrian camels, whether domesticated or feral, are a separate species from the wild Bactrian camel, which is the only truly wild (as opposed to feral) species of camel in the world.

The Bactrian camel shares the genus Camelus with the dromedary (C. dromedarius) and the wild Bactrian camel (C. ferus). The Bactrian camel belongs to the family Camelidae. The ancient Greek philosopher Aristotle was the first European to describe the species of Camelus: in his 4th-century-BC History of Animals, he identified the one-humped Arabian camel and the two-humped Bactrian camel. The Bactrian camel was given its current binomial name Camelus bactrianus by Swedish zoologist Carl Linnaeus in his 1758 publication Systema Naturae.

In 2007, Peng Cui (of the Chinese Academy of Sciences) and colleagues carried out a phylogenetic study of the evolutionary relationships between the two tribes of Camelidae: Camelini—consisting of the three Camelus species (the study considered the wild Bactrian camel as a subspecies of the Bactrian camel)—and Lamini—consisting of the alpaca (Vicugna pacos), the guanaco (Lama guanicoe), the llama (L. glama) and the vicuña (V. vicugna). The study revealed that the two tribes had diverged 25 million years ago (early Miocene), notably earlier than what had been previously estimated from North American fossils. Speciation began first in Lamini as the alpaca came into existence 10 million years ago. Nearly two million years later, the Bactrian camel and the dromedary emerged as two independent species. However, the fossil record suggests a far more recent divergence between the Bactrian camel and the dromedary because, despite a moderately rich fossil record of camelids, no fossil that fits within this divergence is older than middle Pleistocene (about 0.8 Ma). Wikipedia

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An image of Bactrian Camels

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Scientists are creating spinal cord implants that could help paralyzed people walk

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When I was a kid, I fantasized about a future in which science would have solved the whole world’s health problems. But like the jet pack that I also assumed I would have by now, that future just hasn’t materialized. Still, science is making some amazing progress in helping people with spinal cord injuries — a field that’s historically been very challenging forge forward in. Scientists are now testing a spinal cord implant in mice that may help people who are paralyzed walk again.

A paper released this morning in the journal Advanced Science detailed the development of the technology and laid out plans for upcoming clinical trials. Scientists used human tissue samples in a process that mimics the development of the spinal cord in embryos to create 3D implants. This is how it works: Scientists take the human tissue samples, use a process that stimulates them to become embryonic stem cells, and then uses those stem cells to create what is essentially a personalized implant made out of an individual’s own cells.

With this technology, scientists can eventually create personalized implants for people who need them, which they hope will reduce implant rejection. This is a really big deal. Apparently, one of the major obstacles scientists — and patients — have faced in their attempts to repair damaged spinal cords is the body’s natural tendency to reject anything foreign. Since these implants can be created out of an individual’s own cells, rejection becomes a lot less likely.

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Spinal cord implants

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Click the link below for the article:

https://www.mic.com/life/spinal-cord-implants-study

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The Link Between Stress And Gray Hair

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It’s been said that Marie Antoinette’s hair turned white the night before she was beheaded. The assumption is that the stress caused by her impending date with doom caused her locks to lose their color within hours. For what it’s worth, most scientists debunk the story but at the same time, do acknowledge that stress can play a role in the gradual process of hair turning gray.

Women start to go gray around age 35; men turn silvery around age 30. Depending on genes and overall health, gray hairs can make their first appearance in high school or come as late as age 50 for some people.

To understand whether your teenager can actually be blamed for causing you to go gray, you need to understand a bit of our physiology. A typical human head has about 100,000 follicles, each one capable of sprouting several hairs in a lifetime. At the bottom of each follicle is a little hair-growing factory where cells work together to assemble colored hair. The color comes from a pigment called melanin. Hair that has lost most of its melanin is gray; hair that has lost all of its melanin is white.

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Click the link below for the article:

https://www.huffpost.com/entry/the-link-between-stress-and-gray-hair_n_564f332fe4b0258edb310283?utm_hp_ref=tw

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Ottawa, Canada

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Ottawa is the capital city of Canada. Located on the south bank of the Ottawa River in the southern portion of the province of Ontario, Ottawa borders Gatineau, Quebec, and forms the core of the Ottawa–Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). As of 2021, Ottawa had a city population of 1,017,449 and a metropolitan population of 1,488,307, making it the fourth-largest city and fourth-largest metropolitan area in Canada.

Founded in 1826 as Bytown, and incorporated as Ottawa in 1855, the city has evolved into the political center of Canada. Its original boundaries were expanded through numerous annexations and were ultimately replaced by a new city incorporation and amalgamation in 2001 which significantly increased its land area.

Ottawa has the most educated population among Canadian cities and is home to a number of colleges and universities, research and cultural institutions, including the University of Ottawa, Carleton University, the National Arts Centre, the National Gallery of Canada, and numerous national museums.

The city name Ottawa was chosen in reference to the Ottawa River, the name of which is derived from the Algonquin Odawa, meaning “to trade”. The city’s modern name in Algonquin language is Odàwàg. Ottawa is built on unceded Algonquin Anishinaabe territory, as Canada has never signed any treaty with the Algonquin Nation.

With the draining of the Champlain Sea around ten thousand years ago, the Ottawa Valley became habitable. Local populations used the area for wild edible harvesting, hunting, fishing, trade, travel, and camps for over 6,500 years. Ottawa is situated on the traditional land of the Algonquins, Indigenous peoples who are closely related to the Odawa and Ojibwe peoples. The Algonquins call the Ottawa River Kichi Sibi or Kichissippi meaning “Great River” or “Grand River”. The Ottawa River valley has archeological sites with arrowheads, pottery, and stone tools. Three major rivers meet within Ottawa, making it an important trade and travel area for thousands of years. Wikipedia

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An image from Ottawa, Canada

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Inside the Navy SEAL Raid in Yemen Targeting al Qaeda

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It might have been a barking dog, or a crashed drone, or overheard chatter on walkie-talkies. But multiple military and intelligence sources told NBC News that something tipped off the terrorist targets of an early-morning raid by the U.S. and its allies in Yemen on Sunday, and all hell broke loose.

A well-rehearsed mission that was supposed to extract computers and other intelligence from an al Qaeda camp near a mountain village turned into a massive firefight involving Harrier jets, helicopter gunships, and gun-wielding jihadi women that killed one Navy SEAL, 14 al Qaeda fighters and, allegedly, non-combatant women and children.

According to a senior military official, one of the dead was an 8-year-old American girl, the daughter of U.S.-born al Qaeda leader Anwar al-Awlaki, who himself was killed in a U.S. strike in Yemen in 2011.

President Donald Trump declared Sunday’s mission a success, and the Pentagon released a statement Wednesday that said U.S. forces had captured “materials and information that is yielding valuable intelligence.”

But a senior military official told NBC News “almost everything went wrong.” A senior intelligence official with direct knowledge of the operation said it’s not yet clear if the mission was a success. “We went in with the intent of capturing phones and computers and we don’t know yet if anything of great value was obtained,” the official said.

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Image: An image of 8-year-old Nora Anwar Al-AwlakiAn image of 8-year-old Nora Anwar Al-Awlaki, who was killed in a raid in Yemen ordered by President Trump.Yemeni media / via Twitter

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Click the link below for the article:

https://www.nbcnews.com/news/us-news/what-went-wrong-inside-yemen-seal-raid-n716216

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Does Alien Life Exist? New Planet Discoveries Are Best Bet Yet of Finding Life Elsewhere

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NASA’s advanced Kepler Space Telescope has been on the hunt for Earth-like planets in recent months, however, none have been capable of sustaining forms of life due to variables like a lack of water, an atmosphere that can’t support life, or harsh temperatures. However, CNN reported Thursday researchers have found two new planets — one on the edge of Earth’s solar system about 39 light-years away, another just outside of the region — that may be the first of their kind capable of hosting alien forms.”We haven’t even found anything close to this so far,” University of Maryland astronomer Drake Deming told CNN. “It’s more habitable, it’s less harsh and this gives us a good strong chance of actually finding life or something as opposed to the other Earth-like planets found to date.”

The planet nearest the solar system, dubbed GJ 1132b, is rocky, slightly bigger than Earth with 1.6 times the mass, and maintains a temperature of 260 degrees Celsius. “Our ultimate goal is to find a twin Earth, but along the way we’ve found a twin Venus,” Harvard-Smithsonian Center for Astrophysics astronomer David Charbonneau told Telegraph. “We suspect it will have a Venus-like atmosphere too, and if it does we can’t wait to get a whiff.”

“If we find this pretty hot planet has managed to hang onto its atmosphere over the billions of years it’s been around, that bodes well for the long-term goal of studying cooler planets that could have life,” Zachory Berta-Thompson of the Massachusetts Institute of Technology’s Kavli Institute for Astrophysics and Space Research, said in a statement. “We finally have a target to point our telescopes at, and [can] dig much deeper into the workings of a rocky exoplanet, and what makes it tick.”

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Click the link below for the article:

https://www.mic.com/articles/128390/does-alien-life-exist-new-planet-discoveries-are-best-bet-yet-of-finding-life-elsewhere#.szw3w0Fcz

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NASA Mars Announcement November 2015: Here’s What Happened to Mars’ Atmosphere

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In a highly anticipated announcement on Thursday, NASA revealed that solar wind is probably what stripped Mars of its atmosphere — a phenomenon that likely won’t happen to planet Earth.

“To answer the question [of what happened to Mars’ atmosphere], I’ll quote Bob Dylan: ‘The answer, my friend, is blowin’ in the wind,'” lead scientist of NASA’s Mars Exploration Program Michael Meyer said during the announcement. After six months of data analysis, scientists found that solar wind stripped away the gas that was once Mars’ upper atmosphere. 

“Wind grabs ions and strips them from the planet,” Bruce Jakosky of NASA’s Laboratory for Atmospheric and Space Physics said during the announcement.

Mars once had lush valleys and long-existing lakes that closely resembled Earth’s, scientists said. However, the two planets differ in a key way: Earth is protected by a global magnetic field that deflects solar wind away from its atmosphere, while Mars’ magnetic field is thick enough to prevent solar wind from reaching its surface but not from eroding its atmosphere.

The data came from NASA’s MAVEN (Mars Atmosphere and Volatile Evolution) space probe, whose mission was to study Mars’ atmosphere. “Scientists will use MAVEN data to determine the role that loss of volatiles from the Mars atmosphere to space has played through time, giving insight into the history of Mars’ atmosphere and climate, liquid water, and planetary habitability,” according to the space agency’s MAVEN mission page. MAVEN reached Mars in September 2014. 

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Click the link below for the article:

https://www.mic.com/articles/128028/nasa-mars-announcement-november-2015-here-s-what-happened-to-mars-atmosphere

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Ancient Scrolls Blackened by Vesuvius Are Readable at Last

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The lavish villa sat overlooking the Bay of Naples, offering bright ocean views to the well-heeled Romans who came from across the empire to study. The estate’s library was stocked with texts by prominent thinkers of the day, in particular a wealth of volumes by the philosopher Philodemus, an instructor of the poet Virgil.

But the seaside library also sat in the shadow of a volcano that was about to make terrible history.

The 79 A.D. eruption of Mount Vesuvius is most famous for burying Pompeii, spectacularly preserving many artifacts—and residents—in that once-bustling town south of Naples. The tumbling clouds of ash also entombed the nearby resort of Herculaneum, which is filled with its own wonders. During excavations there in 1752, diggers found a villa containing bundles of rolled scrolls, carbonized by the intense heat of the pyroclastic flows and preserved under layers of cement-like rock. Further digs showed that the scrolls were part of an extensive library, earning the structure the name Villa of the Papyri.

Blackened and warped by the volcanic event, the roughly 1,800 scrolls found so far have been a challenge to read. Some could be mechanically unrolled, but hundreds remain too fragile to make the attempt, looking like nothing more than clubs of charcoal. Now, more than 200 years later, archaeologists examining two of the scrolls have found a way to peer inside them with x-rays and read text that has been lost since antiquity.

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scoll-close.jpgA closeup of a Herculaneum papyrus scroll used in an international scanning project. E. Brun

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Click the link below for the article:

https://www.smithsonianmag.com/history/ancient-scrolls-blackened-vesuvius-are-readable-last-herculaneum-papyri-180953950/

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Pitstone Windmill Buckinghamshire England

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Pitstone Windmill is a Grade II* listed windmill in England which is thought to date from the early 17th century. It stands in the northeast corner of a large field near the parish boundary of Ivinghoe and Pitstone in Buckinghamshire and belongs today to the National Trust.

It is thought to have been first built circa 1627 as this date is carved on part of the framework. This is the earliest date to be found on any windmill in the British Isles. It should be remembered that such a structure would have had to have frequent repairs made to it, so it is quite possible the mill predates 1627. It was dendrochronologically dated in 2004 by Dr. Martin Bridge of the Oxford Dendrochronology Laboratory when the oldest pieces in the buck were found to be from trees felled in winter 1595/96 and spring 1597. The ‘new’ crown tree was made from a tree felled in spring 1670, while the quarter bars of the trestle were from trees felled between 1824 and 1826, so like most mills, it is a mix of old timbers variously recycled or hanging on from their original use.

For many hundreds of years, grain grown in the two adjoining villages was ground at the mill into flour. In 1874 the mill was bought by Adelbert Wellington Brownlow Cust, 3rd Earl Brownlow who owned the nearby Ashridge Estate. He subsequently let it to a local farmer, who ran a successful milling business from the mill.

In 1902 the mill was seriously damaged during an enormous gale, damaging it beyond the price of economic repair. Around 1922 the derelict ruined mill was bought from the Ashridge Estate by a farmer whose land was close to the mill. In 1937 he donated it to the National Trust. However, it was not until 1963 that a band of volunteers began to carry out renovations at their own expense. The mill appeared in an episode of The Champions titled The Invisible Man which was filmed in 1967. In 1970, after an interlude of 68 years, the mill once again ground corn.

Today the windmill is open to the public on Summer Sunday afternoons.

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An image of the Pitstone Windmill Buckinghamshire England

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Moara de Vânt

Să facem glume, nu război

🇲🇲Dear all peace-loving people around the world🇲🇲

In the world, human beings are facing various problems. People who are full of greed, anger, and ignorance are seen to be fighting with each other in words and deeds. As the fighting continues, various problems such as civil wars, wars of aggression, and wars of aggression are occurring. As world peace is being destroyed, humans are facing unbearable problems. Innocent children and women are not getting the rights they deserve and deserve. I can't think of one thing every time. What is it? The United Nations. If we look at the responsibilities and duties of the United Nations, I think it is not suitable for solving the problems that are happening in the world today. In fact, the United Nations and the World Security Council, such an organization must rule the world, must be able to give orders, and must have various ways to obey orders. There must be no organization that can influence more than that organization. There should be experts from each country. They can even dominate the superpowers like the US, China, and Britain. Only then will global peace be achieved quickly. Now, if a country with power develops more militarily, economically, or socially than its own country, then powerful countries will jealously seek out enemies and wage war. Or they will attack with fighter jets. In this, innocent people are losing their lives. No one understands the value of a life. You should think about how to achieve global peace by controlling these. If the US continues to be the permanent president of the UN, world peace will never be achieved. If you think carefully, no one sees that they are working for the common good, but for their own benefit, for the benefit of their own country. The permanent president of the UN and the Security Council has rejected this, As a young Rohingya, I have come to realize that only by electing the president and secretary from among the countries in the world through a secret ballot system and governing the world fairly can we achieve global peace. The United Nations and the Security Council are organizations in which any country must govern, give orders, and make them obey their orders. For example, only when a defendant is tried in court can we hold the leaders of the countries in check and control them, can we achieve global peace smoothly. Otherwise, it will not be easy for powerful countries to use various excuses to end this war every year, every year, for the benefit of themselves and their countries. No country's leaders pay any attention to the words of the United Nations and the Security Council. If we look at it in practice, look at the Rohingya issue. Myanmar is a small country. Even that country has been under siege for 8 years. What action can be taken? Why is the UN and the Security Council Powerless? Without such Power, how can the organization bring about global peace? Everyone should think about it. Whether there is a veto or a strong one, all countries in the world can only achieve global peace if they are subject to the UN and the Security Council. Seek peace in the quiet embrace of nature. Peace is an indispensable need of the human race. It is not as if one person can kill another person, and it is as if one country can attack another country, but instead of trying to build peace, we must try to destroy the peace now, and the world is getting hotter and is on the verge of collapse. I especially appeal to all the world experts to urgently try to bring about peace in all parts of the world. Mr, Noor Muhamed Arkhan Rohingya Youth Myanmar

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