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A team of scientists in Namibia, in southwest Africa, has recorded a phenomenal cosmic explosion, the brightest so far, of gamma radiation from a collapsing star. They said usually these explosions occur when a massive star — five or 10 times the mass of the Sun – abruptly detonates and turns into a black hole. The scientists said the gamma-ray burst (GRB) was one of the most energetic radiations and longest gamma-ray afterglow to date. It was also one of the nearest GRBs recorded so far from the Earth, at a distance of about one billion light-years. For comparison: the typical GRB happens about 20 billion light-years away.

This observation has challenged the established theory of gamma-ray bursts in the universe, the team of scientists said. Also, this comparative proximity of the event meant that the scientists could see the “colours” of the radiation.

The scientists could follow the afterglow for up to three days after the initial explosion. The result was a surprise, they noted in the research paper published in Deutsches Elektronen-Synchrotron (DESY). According to the DESY website, its research centre is one of the world’s leading facilities for particle acceleration. It is part of the Helmholtz Association, Germany’s largest scientific organisation.

“Our observations revealed curious similarities between the X-ray and very-high-energy gamma-ray emission of the burst’s afterglow,” said Sylvia Zhu, one of the authors of the paper.

Established theories assume that the two emission components must be produced by separate mechanisms. The event was captured by the High Energy Stereoscopic System (HESS) on August 29, 2019, after the Fermi and Swift satellites detected a burst of radiation in the constellation of Eridanus, according to the DESY research centre.

DESY has also released a video explainer on YouTube simulating the cosmic event. Watch it below:

The video shows a massive dying star collapsing and a neutron star or black hole forming. Then relativistic jets break out from the star and a supernova is produced. Some matter then scatters on magnetic fields around the blast wave and is accelerated. Roughly 900 million years later, radiation from this gamma-ray burst arrives at Earth and satellites and telescopes such as the HESS detect it. Gamma-ray bursts may also occur when two super-dense stellar corpses called neutron stars collide.


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Government Eases Approval Process for FDI in Space Sector

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Government Eases Approval Process for FDI in Space Sector

India will allow 100% foreign direct investment in the manufacture of satellite systems without official approval and eased the rules for launch vehicles, a government statement said, aiming for a greater share of the global space market.

India’s space ambitions got a boost when it became the first country to land a spacecraft near the unexplored south pole of the moon in August – and the fourth to achieve a soft landing – just days after a similar Russian mission failed.

The government said in a statement late on Wednesday that foreign companies could invest in the manufacture of components and systems or sub-systems for satellites up to 100% without approval.

Foreign firms planning to build satellites in India would not require government approval up to 74% of the investment; for investment in launch vehicles, investment could go up to 49% without such approval, the statement said.

India has privatised space launches and is aiming for a five-fold increase in its share of the global launch market, which some expect to be worth $47.3 billion by 2032. India currently accounts for about 2% of the space economy.

The country hopes that liberalised rules for the space sector, long controlled by the government, will draw interest from Elon Musk’s SpaceX and Jeff Bezos’ Blue Origin, among others.

The foreign direct investment policy reform is expected to boost employment and will allow companies to set up manufacturing facilities in India, the government said in the statement.

“This will give India access to the latest tech advances and much-needed funds, not only from the country but from international investors too,” said A.K. Bhatt, director general of the Indian Space Association.

Space-related India stocks such as Paras Defence and Space Technologies , MTAR Technologies, Taneja Aerospace and Aviation and Apollo Micro Systems climbed 2% to 5% on Thursday.

© Thomson Reuters 2024


(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)

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Neuralink Switches Location From Delaware to Nevada

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Neuralink Switches Location From Delaware to Nevada

Elon Musk‘s brain-chip implant company, Neuralink, changed its location of incorporation from Delaware to Nevada, according to the business portals of both states.

The development comes about a week after Musk said Tesla would hold a shareholder vote to transfer its state of incorporation to Texas from Delaware after a judge invalidated his $56 billion (roughly Rs. 4,64,880 crore) pay package.

However, switching the state of incorporation for Tesla could come with hurdles such as investor lawsuits, particularly if it was seen as a move to secure his pay package, legal experts said.

Musk said last week that Neuralink had implanted its first brain chip in a human patient, who was recovering well after the procedure.

Neuralink did not immediately respond to a Reuters request for comment.

In September 2023, the company received approval from an independent review board to begin recruitment for the first human trial of its brain implant for paralysis patients.

Those with paralysis due to cervical spinal cord injury or amyotrophic lateral sclerosis may qualify for the study, it said but did not reveal how many participants would be enrolled in the trial, which will take about six years to complete.

The study will use a robot to surgically place a brain-computer interface (BCI) implant in a region of the brain that controls the intention to move, Neuralink said, adding that its initial goal is to enable people to control a computer cursor or keyboard using their thoughts alone.

© Thomson Reuters 2024


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Elon Musk’s Neuralink Installs Brain Implant in Human for the First Time

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Elon Musk’s Neuralink Installs Brain Implant in Human for the First Time

Neuralink, the California-based neurotechnology company, has implanted a wireless brain chip in a human for the first time, revealed co-founder Elon Musk. The big development was revealed by Musk on January 29 via a series of posts on X (formerly known as Twitter). Neuralink has been working on creating implantable brain-computer interfaces (BCIs). Last year in May, the company received approval from the US Food and Drug Administration (FDA) to conduct human trials. In September 2023, the neurotechnology firm began its human trial recruitment.

Announcing in a post, Musk said, “The first human received an implant from Neuralink yesterday and is recovering well. Initial results show promising neuron spike detection.” He also revealed separately that the first BCI product by the company had been named Telepathy. The brain chip enables the control of a computer or a smartphone just by thinking, claimed the co-founder. Interestingly, the company posted a video on YouTube in 2021 where a monkey could be seen controlling a game of ping-pong with his mind, after being implanted with the chip.

“Imagine if Stephen Hawking could communicate faster than a speed typist or auctioneer. That is the goal,” he added. The first users of the product will be those who have lost the use of their limbs.

While Neuralink received its FDA approval to conduct human trials last year, it rejected an application to pursue the same in 2022. At the time, the regulatory body had cited major safety concerns involving “the device’s lithium battery; the potential for the implant’s tiny wires to migrate to other areas of the brain; and questions over whether and how the device can be removed without damaging brain tissue,” as per a report by Reuters.

In a 2019 presentation, Musk explained that Neuralink BCIs were composed mostly of polyimide alongside a thin gold or platinum conductor. These were inserted into the brain through an automated process performed by a surgical robot. The chip contains a high number of ultra-thin nodules with wires called probes. The endings of these probes contain electrodes that are capable of locating and reading electrical signals in brain. These signals are then wirelessly transmitted to a device which can convert it into electronic commands to control a device.

In the past, the company has conducted extensive tests on animals and has claimed a high success rate. While performing a successful brain chip implant is a major milestone, the success of the product will be determined by its long-term performance and lack of side effects.


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