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Billionaire entrepreneur Elon Musk expects his brain-chip startup Neuralink to start its first human trial this year, he said on Friday in France.

Speaking at the VivaTech event in Paris, co-founder Musk said Neuralink plans to implant a tetraplegic or paraplegic patient during a webcast monitored by Reuters. While Musk didn’t specify how many patients his company would implant or for how long, “it’s looking like the first case will be later this year,” said Musk, who is also CEO of electric carmaker Tesla, social media platform Twitter and the SpaceX rocket launch company.

Last month, Neuralink said it received US Food and Drug Administration (FDA) clearance for its first-in-human clinical trial, a critical milestone for the startup as it faces US probes over its handling of animal experiments. The FDA acknowledged in an earlier statement to Reuters that the agency cleared Neuralink to use its brain implant and surgical robot for trials but declined to provide more details.

If Neuralink can prove its device is safe in humans, it would still take several years, potentially more than a decade, for the start-up to secure commercial use clearance, experts earlier told Reuters. The company is also competing with other neurotech companies which have already implanted their devices in people.

Musk has missed timelines on his public pronouncements about Neuralink before, however. On at least four occasions since 2019, Musk predicted that Neuralink would soon start human trials.

The company, founded in 2016, first sought permission from the FDA in early 2022, and the agency rejected the application, citing dozens of safety concerns, Reuters has reported. Some of the issues involved the lithium battery of the device, the possibility of the implant’s wires migrating within the brain, and the challenge of safely extracting the device without damaging brain tissue.

Neuralink also faces federal scrutiny following Reuters reports about its animal experiments.

Last year, Neuralink employees told Reuters the company was rushing and botching surgeries on monkeys, pigs and sheep, resulting in more animal deaths than necessary, as Musk pressured staff to receive FDA approval. The animal experiments produced data intended to support the company’s application for human trials, the sources said.

In one instance in 2021, the company implanted 25 out of 60 pigs with the wrong-sized devices. All the pigs were subsequently killed – an error that employees said could have been easily avoided with more preparation.

In May, US lawmakers urged regulators to investigate whether the makeup of Neuralink’s panel overseeing animal testing contributed to botched and rushed experiments after Reuters reported on potential financial conflicts on the board.

The Department of Transportation is separately probing whether Neuralink illegally transported dangerous pathogens on chips removed from monkey brains without proper containment measures. An agency spokesperson said on Friday the investigation is ongoing.

Neuralink has also been under investigation by the US Department of Agriculture’s Office of Inspector General for potential animal-welfare violations. This probe has been looking at the USDA’s oversight of Neuralink. An agency spokesperson didn’t immediately respond to a comment request.

Meanwhile, the company’s valuation has shot up in recent months. The start-up was valued at close to $2 billion (roughly Rs. 16,382 crore) in a private fundraising round two years ago and is now worth around $5 billion (roughly Rs. 40,955 crore) based on privately executed stock trades, Reuters reported this month. Neuralink employees who sat on the company’s animal board, which has come under federal scrutiny for potential financial conflicts, stood to benefit from the implant’s quick development. Neuralink stock that some of the employees hold has jumped around 150% in value in just two years, based on the secondary trades, Reuters reported.

© Thomson Reuters 2023


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A Nearby Supernova May End Dark Matter Search, Claims New Study

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A Nearby Supernova May End Dark Matter Search, Claims New Study

The pursuit of understanding dark matter, which comprises 85 percent of the universe’s mass, could take a significant leap forward with a nearby supernova. Researchers at the University of California, Berkeley, led by Associate Professor of Physics Benjamin Safdi, have theorised that the elusive particle known as the axion might be detected within moments of gamma rays being emitted from such an event. Axions, predicted to emerge during the collapse of a massive star’s core into a neutron star, could transform into gamma rays in the presence of intense magnetic fields, offering a potential breakthrough in physics.

Potential Role of Gamma-Ray Telescopes

The study was published in Physical Review Letters and revealed that the gamma rays produced from axions could confirm the particle’s mass and properties if detected. The Fermi Gamma-ray Space Telescope, currently the only gamma-ray observatory in orbit, would need to be pointed directly at the supernova, with the likelihood of this alignment estimated at only 10 percent. A detection would revolutionise dark matter research, while the absence of gamma rays would constrain the range of axion masses, rendering many existing dark matter experiments redundant.

Challenges in Catching the Event

For detection, the supernova must occur within the Milky Way or its satellite galaxies—an event averaging once every few decades. The last such occurrence, supernova 1987A, lacked sensitive enough gamma-ray equipment. Safdi emphasised the need for preparedness, proposing a constellation of satellites, named GALAXIS, to ensure 24/7 sky coverage.

Axion’s Theoretical Importance

The axion, supported by theories like quantum chromodynamics (QCD) and string theory, bridges gaps in physics, potentially linking gravity with quantum mechanics. Unlike neutrinos, axions could convert into photons in strong magnetic fields, providing unique signals. Laboratory experiments like ABRACADABRA and ALPHA are also probing for axions, but their sensitivity is limited compared to the scenario of a nearby supernova. Safdi expressed urgency, noting that missing such an event could delay axion detection by decades, underscoring the high stakes of this astrophysical endeavour.

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Fastest-Moving Stars in the Galaxy May be Piloted by Aliens, New Study Suggests

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Fastest-Moving Stars in the Galaxy May be Piloted by Aliens, New Study Suggests

Intelligent extraterrestrial civilisations might be utilising stars as massive interstellar vehicles to explore the galaxy, according to a theory proposed by Clement Vidal, a philosopher at Vrije Universiteit Brussel in Belgium. His research suggests that alien species could potentially accelerate their binary star systems to traverse vast cosmic distances. While such a concept is purely hypothetical and unproven, Vidal’s recent paper, which has not undergone peer review, raises intriguing possibilities about advanced extraterrestrial engineering.

Concept of Moving Star Systems

The study was published in the Journal of the British Interplanetary Society. As per a report by LiveScience, the idea revolves around the notion that alien civilisations, instead of building spacecraft for interstellar travel, might manipulate entire star systems to travel across the galaxy. Vidal highlights binary star systems, particularly those involving neutron stars and smaller companion stars, as ideal candidates. Neutron stars, due to their immense gravitational energy, could serve as anchors for devices designed to propel the system by selectively ejecting stellar material.

Vidal explained in the paper that uneven heating or manipulation of magnetic fields on a star’s surface could cause it to eject material in one direction. This process would create a reactionary thrust, propelling the binary system in the opposite direction. The concept provides a way to travel while preserving planetary ecosystems, making it a theoretically viable method for species reliant on their home systems.

Known Examples with High Velocities

Astronomers have identified hypervelocity stars, such as the pulsars PSR J0610-2100 and PSR J2043+1711, which exhibit high accelerations. While their movements are believed to be natural phenomena, Vidal suggests they could be worth further investigation to rule out potential artificial influences.

This theory adds an unconventional angle to the search for intelligent life, expanding possibilities beyond traditional methods of exploration like searching for signals or probes. The research underscores the importance of considering advanced and unconventional methods aliens might employ to navigate the galaxy.

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Hubble Telescope Finds Unexpectedly Hot Accretion Disk in FU Orionis

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Hubble Telescope Finds Unexpectedly Hot Accretion Disk in FU Orionis

NASA’s Hubble Space Telescope has provided new insights into the young star FU Orionis, located in the constellation Orion. Observations have uncovered extreme temperatures in the inner region of its accretion disk, challenging current models of stellar accretion. Using Hubble’s Cosmic Origins Spectrograph and Space Telescope Imaging Spectrograph, astronomers captured far-ultraviolet and near-ultraviolet spectra, revealing the disk’s inner edge to be unexpectedly hot, with temperatures reaching 16,000 kelvins—almost three times the Sun’s surface temperature.

A Star’s Bright Outburst Explained

First observed in 1936, FU Orionis became a hundred times brighter in months and has remained a unique object of study. Unlike typical T Tauri stars, its accretion disk touches the stellar surface due to instabilities. These are caused by the disk’s large mass, interactions with companion stars, or material falling inwards. Lynne Hillenbrand, a co-author from Caltech, in a statement said that the ultraviolet brightness seen exceeded predictions, revealing a highly dynamic interface between the star and its disk.

Implications for Planet Formation

As per a report by NASA, the study holds significant implications for planetary systems forming around such stars. The report further quoted Adolfo Carvalho, lead author of the study, saying that while distant planets in the disk may experience altered chemical compositions due to outbursts, planets forming close to the star could face disruption or destruction. This revised model provides critical insights into the survival of rocky planets in young star systems, he further added.

Future Investigations on FU Orionis

The research team continues to examine spectral emission lines in the collected data, aiming to map gas movement in the star’s inner regions. Hillenbrand noted that FU Orionis offers a unique opportunity to study the mechanisms at play in eruptive young stars. These findings, published in The Astrophysical Journal Letters, showcase the ongoing value of Hubble’s ultraviolet capabilities in advancing stellar science.

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