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OpenAI has reached a deal for ousted boss Sam Altman to return as its chief executive, the company said on Wednesday. The artificial intelligence company said it would reinstate a board consisting of Bret Taylor, Larry Summers, and Adam D’Angelo. “We have reached an agreement in principle for Sam to return to OpenAI as CEO with a new initial board of Bret Taylor (Chair), Larry Summers, and Adam D’Angelo,” the company posted on X. The AI company’s board abruptly fired Mr Altman on Friday saying it “no longer has confidence in his ability to continue leading OpenAI”. Within days, OpenAI brought in the former head of Twitch Emmett Shear as interim chief. But chaos soon erupted at the company with over 500 employees threatening to quit unless its board resigned and reinstated their dismissed boss. The announcement earlier on Wednesday confirms rumours that the OpenAI founder is returning to the helm of his company. “We are collaborating to figure out the details,” the company said. More follows Read More Microsoft stock just hit an all-time high amid OpenAI chaos Microsoft chief hints Sam Altman may return as OpenAI staff demand board resignation OpenAI staff ‘threaten to quit over ousting of Sam Altman’

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SALT LAKE CITY--(BUSINESS WIRE)--Jul 26, 2023--

A huge bubble of galaxies that is one billion lightyears across could be a remnant of the ripples caused by the Big Bang, according to astronomers who have mapped the structure. The structure, named Hoʻoleilana by University of Hawaii scientists, is thought to have been caused by so-called Baryon Acoustic Oscillations (BAOs). These were ripples in the particles of the early Universe in the period following the Big Bang, when planets, solar systems and galaxies were not yet fully formed. As the ripples went outward, they created areas of density in the particles, causing bubble-like structures in which galaxies eventually coalesced. Until now, the BAOs were just a prediction – part of the wider Big Bang theory. No specific structures in the Universe had been found which mimicked their patterns. But Hoʻoleilana fits the description of these huge cosmic bubbles perfectly, according to Brent Tully, who led the study at the University of Hawaii’s Institute for Astronomy. “We were not looking for it. It is so huge that it spills to the edges of the sector of the sky that we were analyzing,” he said. “As an enhancement in the density of galaxies it is a much stronger feature than expected. The very large diameter of 1bn light years is beyond theoretical expectations. “If its formation and evolution are in accordance with theory, this BAO is closer than anticipated, implying a high value for the expansion rate of the universe.” The bubble is absolutely huge. It is made up of several superclusters, structures which themselves are thought to be among the Universe’s largest arrangements of matter. This includes the Hercules Supercluster, the Corona Borealis Supercluster and the Sloan Great Wall. All of these structures contain thousands of galaxies. In the middle of Hoʻoleilana sits the Bootes Supercluster and the Bootes Void, an immense space of nothingness which is an incredible 330m lightyears across. Daniel Pomarede, from the CEA Paris-Saclay University, who contributed to the research, said: “It was an amazing process to construct this map and see how the giant shell structure of Ho’oleilana is composed of elements that were identified in the past as being themselves some of the largest structures of the universe.” The research was published on 5 September in The Astrophysical Journal. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

LANCASHIRE, England--(BUSINESS WIRE)--Jul 27, 2023--