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梅州白带多 腰痛
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发布时间: 2025-05-28 09:10:25北京青年报社官方账号
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  梅州白带多 腰痛   

Boeing safely landed its crew capsule in the New Mexico desert Sunday after an aborted flight to the International Space Station that could hold up the company’s effort to launch astronauts for NASA next year.The Starliner descended into the Army’s White Sands Missile Range in the frigid predawn darkness, ending a two-day demo that should have lasted more than a week. A trio of red, white and blue parachutes popped open and airbags also inflated around the spacecraft to ease the impact. “We pinpoint landed it,” NASA Administrator Jim Bridenstine said at a post-landing briefing. The successful return capped a rocky start to a mission that was supposed to include a docking with the space station. Managers will review all the data before deciding whether to do another test flight or go straight to flying astronauts, said NASA’s Steve Stich. After seeing this first test flight cut short and the space station docking canceled because of an improperly set clock on the capsule, Boeing employees were relieved to get the Starliner back.Recovery teams cheered as they watched the capsule drift down through the air and make a bull’s-eye landing. The touchdown was broadcast live on NASA TV; infrared cameras painted the descending capsule in a ghostly white. As the sun rose, close-up views showed the large white and black capsule upright — with hardly any scorch marks from re-entry — next to a U.S. flag waving from a recovery vehicle. The astronauts assigned to the first Starliner crew — two from NASA and one from Boeing — were part of the welcoming committee. “A beautiful soft landing,” said NASA astronaut Mike Fincke. “Can’t wait to try it out.” It was the first American-made capsule designed for astronauts to make a ground landing after returning from orbit. NASA’s early crew capsules — Mercury, Gemini and Apollo — all had splashdowns. SpaceX’s Dragon capsule, which made its orbital debut last winter with a test dummy, also aims for the ocean at mission’s end.Minutes after touchdown, top NASA and Boeing officials poured into Mission Control in Houston to congratulate the team. The newly returned Starliner also got a personalized name: Calypso, after Jacques Cousteau’s boat.The capsule’s first trip to space began with a smooth rocket ride from Cape Canaveral on Friday. But barely a half hour into the flight, it failed to fire its thrusters to give chase to the space station and ended up in the wrong orbit. The problem was with the Starliner’s internal clock: It did not sync up with the Atlas V rocket and was off by 11 hours, according to Boeing’s Jim Chilton. The capsule burned so much fuel trying to orient itself in orbit that there wasn’t enough left for a space station rendezvous. Flight controllers tried to correct the problem, but between the spacecraft’s position and a gap in communications, their signals did not get through. They later managed to reset the clock. Boeing is still trying to figure out how the timing error occurred. The mission lasted nearly 50 hours and included 33 orbits around the Earth, about 100 orbits fewer than planned. A test dummy named Rosie the Rocketeer — after Rosie the Riveter from World War II — rode in the commander’s seat. Also returning were holiday presents, clothes and food that should have been delivered to the space station crew.Even though not all goals were met including a station docking, “in my eyes, it was a huge success,” said Boeing flight director Richard Jones.There were no parachute problems this time. Last month, only two parachutes deployed during an atmospheric test because workers failed to connect a pin in the rigging.“We didn’t do everything we wanted to do, but we don’t see anything wrong with this spaceship right now,” despite the timing error, Chilton said. He apologized to the six space station residents for not delivering their Christmas presents. Boeing had been shooting for its first astronaut launch in the first half of 2020. This capsule is supposed to be recycled for the second flight with crew; each Starliner is built to fly in space 10 times.The capsule will return to Florida’s Kennedy Space Center in two weeks for inspections and refurbishments.“We’ve got a lot of learning in front of us,” Bridenstine said. “But we have enough information and data to where we can keep moving forward in a very positive way.Despite its own setbacks, SpaceX remains in the lead in NASA’s commercial crew program.SpaceX’s Dragon crew capsule successfully completed its first orbital demo last March. While the flight to the space station went well, the capsule exploded a month later on a test stand at Cape Canaveral. If a launch abort test goes well next month, SpaceX could start launching NASA astronauts by spring and end a nearly nine-year gap in flying people from Cape Canaveral.As its space shuttle program was winding down, NASA looked to private industry to take over cargo and crew deliveries to the space station. SpaceX kicked off supply runs in 2012. Two years later, NASA hired SpaceX and Boeing to ferry astronauts to the orbiting lab. SpaceX got .6 billion under NASA’s commercial crew program, while Boeing received more than billion.The goal was to launch NASA astronauts by 2017.Because of delays, NASA is looking to buy another two seats on Russian rockets in 2020 and 2021 to guarantee a continuing U.S. presence on the space station. Even when private companies are regularly carrying up astronauts for NASA, the space agency always will reserve a seat for a Russian in exchange for a free U.S. seat on a Soyuz.Over the years, these Soyuz rides have cost NASA up to million apiece, with the tab totaling in the billions.A recent audit by NASA’s inspector general found a Starliner seat will cost slightly more than that, with a Dragon seat going for just over half the price.___The Associated Press Health and Science Department receives 5902

  梅州白带多 腰痛   

Canadian officials on Thursday said that seven people were killed in a plane crash in Kingston, Ontario, which is located along Lake Ontario, near the border with New York. According to CTV, three children were among those killed in Wednesday's plane crash.An official from Canada's Transportation Safety Board said weather may have been a factor. Winds in the area reached 50 MPH around the time of the crash."Pilots are always faced with, you know, obtaining the latest weather, looking at the forecast, looking at the weather along different stations and the weather from one station may vary greatly from another station," Ken Webster from the Transportation Safety Board said. "So at this point, all we have to go on is is we know that it was a deteriorating to some point. So we have to look into exactly the route of the aircraft, where and how the weather was along his route and when he got here, what it was like. So that's what we need to do."The plane took off from Toronto's Buttonville Municipal Airport, and was attempting to land at the airport in Kingston. It is believed that the plane was stopping in Kingston on its way to Quebec City. CTV reported that the plane was an American aircraft. The identities of the seven on board have not been released. There were no survivors, officials said. 1324

  梅州白带多 腰痛   

BUFFALO, N.Y. – A powerful moment was caught on camera at an upstate New York protest.Officer Armonde “Moe” Badger with the Buffalo Police Department led protesters in the hymn, “We Shall Overcome” on Tuesday. In a video of Badger’s performance, you can see protesters gathered around the officer and singing along.Badger is one of department’s two “singing cops” who use their vocal prowess for community outreach throughout the city. The officer’s gesture comes at a time of volatility between law enforcement and demonstrators following the death of George Floyd in Minneapolis. Floyd died in police custody on Memorial Day after a police officer pressed his knee against the 46-year-old's neck for several minutes, even as the man said, “I can’t breathe.” That officer, Derek Chauvin, and three others involved have been fired. And, Chauvin has been charged with Floyd’s murder, but the other cops have not been arrested.Since Floyd’s death, people across the world have taken to the streets to demand justice and to call for an end to systemic racism within law enforcement. 1092

  

An investigation is underway after a Boeing 737 MAX 8 aircraft crashed Sunday in Ethiopia, killing all 157 people on board.It is the second time in less than six months that one of the planes has crashed within minutes of takeoff, after a new Lion Air Boeing 737 MAX 8 flight went down over the Java Sea last October, killing 189 people.Both crashes are under investigation and there is no evidence of a link between the two, but similarities between the incidents have prompted caution among some aviation authorities and airlines.There are approximately 350 Boeing 737 Max 8 aircraft in operation worldwide, being flown by 54 operators, according to the US Federal Aviation Administration (FAA).Travelers can check the full list of airlines that fly the plane on the Boeing 788

  

An estimated 130,000 people -- almost 4% of the population -- left the island of Puerto Rico in the aftermath of Hurricane Maria, according to data released Wednesday by the US Census Bureau."It's a really large number -- and it's a number that's well above what we've seen in the past," Alexis Santos, a demographer at Penn State University, said of the population decrease. "Here, what you're looking at is double -- double the displacement we would have expected" in a normal year.The population of the US territory has long been falling and now sits at about 3.2 million. Amid a debt crisis and other problems, more than 530,000 people have left Puerto Rico since 2010, the agency says.The population estimates are considered the most authoritative look yet at the "exodus" of people from the Caribbean island amid monthslong power outages and other chaotic conditions that 890

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