作者：建道 来源：原创 发布日期：08-20
A | 4月22日，河南省荥阳市一名儿童在马场骑马时头朝下被马拖行数百米，相关视频引发网友关注。22日中午，视频中儿童的父亲告诉记者，孩子已去世。 视频显示，一名身穿白色上衣的儿童被马拖行。
B | CAPE CANAVERAL, Fla. -- NASA’s Psyche spacecraft rocketed away Friday on a six-year journey to a rare metal-covered asteroid.Most asteroids tend to be rocky or icy, and this is the first exploration of a metal world. Scientists believe it may be the battered remains of an early planet's core, and could shed light on the inaccessible centers of Earth and other rocky planets.SpaceX launched the spacecraft into an overcast midmorning sky from NASA’s Kennedy Space Center. Named for the asteroid it’s chasing, Psyche should reach the huge, potato-shaped object in 2029.“It's so thrilling,” said Laurie Leshin, director of NASA’s Jet Propulsion Laboratory. Added Arizona State University's Jim Bell, part of the Psyche team: “What a great ride so far.”An hour later, the spacecraft separated successfully from the rocket's upper stage and floated away, drawing applause from ground controllers.After decades of visiting faraway worlds of rock, ice and gas, NASA is psyched to pursue one coated in metal. Of the nine or so metal-rich asteroids discovered so far, Psyche is the biggest, orbiting the sun in the outer portion of the main asteroid belt between Mars and Jupiter alongside millions of other space rocks. It was discovered in 1852 and named after Greek mythology’s captivating goddess of the soul.“It’s long been humans’ dream to go to the metal core of our Earth. I mean, ask Jules Verne,” lead scientist Lindy Elkins-Tanton of Arizona State University said ahead of the launch. “The pressure is too high. The temperature is too high. The technology is impossible,” she said. “But there’s one way in our solar system that we can look at a metal core and that is by going to this asteroid.”Astronomers know from radar and other observations that the asteroid is big — about 144 miles (232 kilometers) across at its widest and 173 miles (280 kilometers) long. They believe it’s brimming with iron, nickel and other metals, and quite possibly silicates, with a dull, predominantly gray surface likely covered with fine metal grains from cosmic impacts.Otherwise, it’s a speck of light in the night sky, full of mystery until the spacecraft reaches it after traveling more than 2 billion miles (3.6 billion kilometers).Scientists envision spiky metal craters, huge metal cliffs and metal-encrusted eroded lava flows greenish-yellow from sulfur — “almost certain to be completely wrong,” according to Elkins-Tanton. It's also possible that trace amounts of gold, silver, platinum or iridium — iron-loving elements — could be dissolved in the asteroid's iron and nickel, she said. “There's a very good chance that it’s going to be outside of our imaginings, and that is my fondest hope," she said.Believed to be a planetary building block from the solar system’s formation 4.5 billion years ago, the asteroid can help answer such fundamental questions as how did life arise on Earth and what makes our planet habitable, according to Elkins-Tanton.On Earth, the planet's iron core is responsible for the magnetic field that shields our atmosphere and enables life.Led by Arizona State University on NASA’s behalf, the $1.2 billion mission will use a roundabout route to get to the asteroid. The van-size spacecraft with solar panels big enough to fill a tennis court will swoop past Mars for a gravity boost in 2026. Three years later, it will reach the asteroid and attempt to go into orbit around it, circling as high as 440 miles (700 kilometers) and as close as 47 miles (75 kilometers) until at least 2031.The spacecraft relies on solar electric propulsion, using xenon gas-fed thrusters and their gentle blue-glowing pulses. An experimental communication system is also along for the ride, using lasers instead of radio waves in an attempt to expand the flow of data from deep space to Earth. NASA expects the test to yield more than 10 times the amount of data, enough to transmit videos from the moon or Mars one day.The spacecraft should have soared a year ago, but was held up by delays in flight software testing attributed to poor management and other issues. The revised schedule added extra travel time. So instead of arriving at the asteroid in 2026 as originally planned, the spacecraft won’t get there until 2029.That’s the same year that another NASA spacecraft — the one that just returned asteroid samples to the Utah desert — will arrive at a different space rock as it buzzes Earth.___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.。孩子的一只脚卡在马镫上，身体朝下，脸在地面拖行。马拖着孩子先往远处跑又掉头往回跑，在此期间，孩子几次撞到了沙滩车上。 22日下午，涉事男孩的父亲称，视频中被拖行的孩子是他儿子，今年8岁，是21日下午在黄河边骑马时出事的，因伤势严重已经去世。 男孩父亲对记者表示，他的孩子骑马也是花钱的，50元一圈，对方没有提供头盔等护具，意外发生时，也没人给孩子牵马。
C | 事后他才发现，这个收费的骑马项目似乎没有相关证照。
D | “他们给骑马的人也没买保险，孩子送医救治的医疗费也都是我们自己垫付的。关于后续的赔偿、处理问题，我们和马主方还在协商。
E | ” 多名马术俱乐部工作人员介绍，开办供游客骑行的马场有诸多要求：马厩、围栏等硬件设施要达标，要有赛马资格证的专业人员，马儿要定期检疫等。一名业内人士说：“需要多个部门批准后，马场才能营业。从视频上看，涉事马场有点像‘游击队’。” 涉事马场是否有相关资质？与附近景区有无关系？4月22日下午，荥阳市文化广电旅游体育局工作人员称，此事不归该局管。按属地管理原则，由荥阳市广武镇管理。广武镇镇长郝卫锋对记者称，涉事场所不能称为马场，是由个人经营的，当地公安已介入调查。 4月22日，荥阳市发布《关于荥阳市“男孩骑马被拖行”事件的通报》，详情如下： 关于荥阳市“男孩骑马被拖行”事件的通报 近日，网传荥阳市桃花峪一男孩骑马被拖行受伤。经核实，2024年4月21日下午，一男孩在荥阳市广武镇霸王城村骑马游玩时，不慎坠马被拖行，后送医抢救无效死亡。 目前，涉事马主樊某某已被公安机关依法采取刑事强制措施。 对意外不幸离世男孩深表痛心，荥阳市委市政府正全力以赴做好家属安抚和善后工作。 中共荥阳市委宣传部 2024年4月22日 （中国小康网综合荥阳发布、上游新闻、北京青年报、齐鲁晚报)。
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