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Scientists discover ‘oldest-known star’ in Galactic Halo

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Scientists have discovered the oldest star LAMOST J1010+2358 currently known in the Galactic Halo, enabling experts to broaden their understanding of the evolution of early stars and of the universe.

According to the findings of the study, the star was born in the gas cloud left by a first-generation star having mass up to 260 times our Sun.

The new study was published in the journal Nature Wednesday.

The research was carried out under the Chinese Academy of Sciences (CAS) and was led by Chinese astronomers at the National Astronomical Observatories of China (NAOC).

The project leader Zhao Gang stated that the first stars illuminated the universe during the cosmic dawn and put an end to the cosmic “dark ages” that followed the Big Bang.

“However, the distribution of their mass is one of the great unsolved mysteries of the cosmos,” he added.

As per the numerical simulations of the formation of the first stars, the mass of the early stars could reach up to masses similar to hundred suns.

This image the remains of RCW 86, the oldest documented example of a supernova. — Nasa/File
This image the remains of RCW 86, the oldest documented example of a supernova. — Nasa/File 

Zhao noted: “Among them, the first stars with masses between 140 and 260 solar masses ended up as a special type of supernovae, called pair-instability supernovae [PISN], which would imprint a unique chemical signature in the atmosphere of the next generation of stars.”

However, he underlined, “no direct evidence of such type of supernovae had been previously found.”

Given the star’s chemical characteristics, it is consistent with the theory of PISN.

The first survey was conducted by the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) in China after that the follow-up observation was carried out by the Subaru telescope in Japan, identifying this chemically peculiar star.

“Our discovery is the first clear direct evidence of the existence of a PISN from a very massive first-generation star in the early universe,” Xing Qianfan, a key member of the study said.

Timothy Beers, a professor at the University of Notre Dame in the US, noted: “This paper presents what is, to my knowledge, the first definitive association of a Galactic halo star with an abundance pattern originating from a PISN.”

Wang Xiaofeng, a professor at Tsinghua University, said that the “next generation stars carry the elemental imprints formed by the evolution and death of the previous generation stars.”

“It’s like we can trace the characteristics of a child’s father by examining the child’s DNA.”

“Understanding the properties of the first-generation stars is crucial for us to understand the formation of stars, galaxies, and the large-scale structure of the universe,” said Han Zhanwen, of CAS.

Toshitaka Kajino, a professor at Beihang University underlined: “I think that this discovery, with many findings expected to come in the future, might shed light on the still unknown mechanism of very massive black hole formation in the early universe.”

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Google Makes The Decision To Boost Investments And Back The Government’s Youth Skills Training Initiative

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 Prime Minister Muhammad Shehbaz Sharif was visited in Islamabad by a four-person Google delegation led by Mr. Scott Beaumont, President of the APAC area.

Pakistan’s digital economy is about to undergo a revolutionary change, according to the prime minister, who greeted the team. Speaking on the government’s intentions to reach the goal of US$ 25 billion in exports over the next five years, the prime minister revealed that funding will be used for youth training, IT infrastructure upgrades, and regulatory environment enhancements. Pakistan’s economy is being fully digitalised, he remarked. In his attempts, he stressed the need of working together with a tech behemoth like Google.

The Prime Minister praised Google for pioneering projects that have dramatically enhanced the lives of thousands of Pakistanis in recent years, as well as for its involvement in propelling the country’s digital economy closer to reality. Noting with satisfaction that Google has helped Pakistani young land about a million jobs in 2023 alone, the Prime Minister emphasised that this is a testament to both Google’s dedication to upskilling and empowering Pakistan’s youth and Pakistan’s potential in the digital marketplace.

Informing the Prime Minister of its future involvement intentions, Mr. Scott stated that Google has made the decision to support the government’s youth skill-training initiatives and to expand its investment footprint in Pakistan. He went on to say that for a values-driven digital firm like Google, the growing economy and the sizeable youth population are crucial for optimising the economic benefits of technology. He restated that Pakistan’s IT industry will undergo a revolution when five lac Chromebooks are produced there by 2026.

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Google launches the ability to install multiple apps at once through the Play Store.

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Android users now have the ability to install or update many apps or games at once in the Play Store thanks to a feature introduced by tech giant Google.

Even if Android users downloaded or tried to update several apps or games at once, the prior capability would only process one app at a time.

In the Google Play Store, users can now download or manually update up to three apps or games at once, according to a GSMArena report.

with order to assist Android users with updating or installing multiple apps at once, Google is reportedly already starting to roll out the new feature in a few select locations, including India.

The feature will process three apps at once while sending the fourth to pending when customers install or manually update programs.

When configuring new phones or recovering from a backup, this feature is said to save a tonne of time.

It should be mentioned that Apple has long since permitted customers to download and install up to three iOS apps at once from the App Store.

According to GSMArena, the function is really available on a few cell phones in some regions, even though Google has not formally confirmed when it will appear or whether it will work with any particular handset.

Google started releasing a new AI-powered feature for Android phones a few weeks ago that locks users out of their data to prevent hackers from accessing it.

According to a Forbes story, cellphones running Android 10 or later will soon be able to use the function, which incorporates artificial intelligence.

The anti-theft feature known as “theft detection lock” is currently being rolled out to certain users, according to Mishaal Rahman, who frequently updates his followers on the most recent OS changes on X.

A restricted group of customers who registered for the beta program in Brazil are now receiving theft detection locks, according to Rahman’s post.

Rehman claims that Google Play Services will be used to provide the AI-powered feature to all Android 10 devices.

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Encouraging the IT Sector: Federal Government To Create Nationwide Network Of IT Parks

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Modern Information Technology Parks will be dotted around the nation by a network established by the federal government.

The goal of the program is to give young professionals a springboard to carry out their creative ideas and support the economy of the country.

The Ministry of Information Technology claims that these parks will increase exports and the IT industry while creating jobs for IT specialists.

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