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2025-05-23 23:01:56
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  吉林专业看男科医院   

That black hole you've seen everywhere now has a name.It's been christened Powehi — a Hawaiian phrase referring to an "embellished dark source of unending creation."The groundbreaking, first-ever photograph of a black hole was published around the world when it was unveiled on Wednesday, captivating viewers and providing the only direct visual evidence that these regions of spacetime exist.The responsibility of finding it a name fell to Larry Kimura, a Hawaiian language professor at the University of Hawaii at Hilo, who was approached by astronomers involved with the project. Two of the eight telescopes used to capture the photograph are located in Hawaii.Powehi was chosen for its roots in the Kumulipo, an 18th-century Hawaiian chant that describes a creation story.It puts together two terms from the chant: Po, meaning profound dark source of unending creation, and wehi (or wehiwehi) which is one of the several ways that po is described in the chant."It is awesome that we, as Hawaiians today, are able to connect to an identity from long ago, as chanted in the 2,102 lines of the Kumulipo, and bring forward this precious inheritance for our lives today," Kimura said in a statement."To have the privilege of giving a Hawaiian name to the very first scientific confirmation of a black hole is very meaningful to me and my Hawaiian lineage that comes from po," he added. "I hope we are able to continue naming future black holes from Hawaii astronomy according to the Kumulipo."Powehi was captured by the Event Horizon Telescope, a project that connected eight telescopes around the world.The supermassive black hole and its shadow, at the center of a galaxy known as M87, were photographed back in April 2017, but the results were only revealed on Wednesday."We have seen what we thought was unseeable," said Sheperd Doeleman, director of the Event Horizon Telescope Collaboration, unveiling the historic snap. "We have seen and taken a picture of a black hole."More than 200 researchers were involved in the project, and they had worked for more than a decade to capture the image. The project is named after the event horizon, the proposed boundary around a black hole that represents the point of no return where no light or radiation can escape.The telescope array collected 5,000 trillion bytes of data over two weeks, which was processed through supercomputers so that the scientists could retrieve the images."Powehi, as a name, is so perfect, because it provides real truths about the image of a black hole that we see," Jessica Dempsey of the James Clerk Maxwell Telescope, said in 2617

  吉林专业看男科医院   

The House Oversight Committee voted on Wednesday to hold Attorney General William Barr and Commerce Secretary Wilbur Ross in contempt of Congress over a dispute related to the addition of a citizenship question to the 2020 census. The vote was 24-15.The Democratic-led committee voted on a contempt resolution that recommends that the House of Representatives find Barr and Ross in contempt of Congress "for refusal to comply with subpoenas." The contempt resolution includes citations for both civil and criminal contempt.It's unclear what will happen now that the committee has voted on the resolution. Depending on how the Departments of Justice or Commerce respond, House Democrats could go to the floor with both criminal and civil contempt. They could also drop criminal before going to the floor if some accommodation happens.According to a committee aide, a criminal contempt vote would have to go through the floor. However, civil contempt could go through the Bipartisan Legal Advisory Group, which is made up of the three highest-ranked House Democrats and two highest-ranked House Republicans.Earlier on Wednesday, the Department of Justice informed the House Oversight Committee on Wednesday that President Donald Trump has asserted executive privilege over materials related to the addition of a citizenship question to the 2020 census.In a letter to Committee Chair Elijah Cummings, Assistant Attorney General Stephen Boyd 1450

  吉林专业看男科医院   

The Dow Jones Industrial Average closed the week on a sour note, giving back some of the gains it had made on three straight days in the green.The Dow closed down 915 points — a 4 percent loss — its first drop since Monday. However, the markets remained up for the week, the first week-over-week gain since February.The day of losses came despite the House passage of a .2 trillion stimulus package that the Trump administration hopes can boost the economy amid an economic slowdown caused by the coronavirus. President Donald Trump is expected to sign the bill into law this afternoon. 600

  

The European Union chief Brexit negotiator Michel Barnier said Thursday that the EU and Britain had agreed on an outline Brexit deal which still needs to be backed by EU member states and by the respective parliaments.Barnier said the deal removed uncertainty both citizens. businesses and institutions.The EU's chief Brexit negotiator said the agreement also included the transition period which would last until the end of 2020 "and perhaps one or two years further, subject to joint agreement between the EU and Britain.An agreement to revise the political declaration was also struck, Barnier said, which would set out the framwork for the future relationship between the bloc and Britain.Barnier said the deal would be presented to the European Council later in the day.He added that British Prime Minister Boris Johnson told the EU he is confident he can get a deal through the House of Commons. 913

  

The Federal Reserve on Wednesday voted to raise interest rates despite new signs of economic softening and weeks of market volatility.Central bankers unanimously agreed under Chairman Jerome Powell to lift the federal funds rate, which controls the cost of mortgages, credit cards and other borrowing, to a range of 2.25% and 2.5%.Interest rates have increased seven times since President Donald Trump took office. Four of those increases have been under Powell.The policy decision comes even as Trump called on the Fed to move cautiously "before they make yet another mistake," shortly before policy makers began their two-day policy-setting meeting in Washington on Tuesday. 688

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