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NASA spacecraft launched to mysterious and rare metal asteroid_我的网站

一 |      8 月 26 日消息，Nitter 是一个开源项目，允许用户无需登录，甚至无需打开 X 应用，就能阅读 X 上的帖子。如今，X 已向 Nitter 发出停止侵权并终止相关活动的律师函，要求其关闭。该消息通过 Nitter 网站上的一则简短公告对外公布，此前 X 已经尝试通过技术手段让 Nitter 下线。Nitter 还为包括 XCancel 在内的一些其他网站提供支持，这些网站同样允许用户直接查看 X 上的帖子。    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.。注意到，这并不是 X 第一次尝试关闭 Nitter。2024 年，X 推出新的 API 限制后，Nitter 最主要的实例 Nitter.net 曾一度下线。

二 | Nitter 的工作原理是抓取公开的 X 帖子，然后移除广告、跟踪 Cookie 和 JavaScript，为用户提供一种干净、简洁的阅读方式，无需注册账号，也不用安装或打开 X 应用。

三 | 在那次打击之后，根据 Nitter 的 GitHub 页面，想要搭建 Nitter 实例的用户必须将其连接到一个真实的 X 账号。尽管受到这些限制，Nitter 的开发后来还是重新恢复，多个 Nitter 实例也再次上线。这一次，X 则试图通过法律手段关闭 Nitter 及其各个实例。Nitter 网站目前显示，该项目已经下线，其创建者在收到停止侵权律师函后正在寻求法律建议。该项目创建者是一名使用 Zedeus 这一网名的开发者，他通过电子邮件向 TechCrunch 表示，其他 Nitter 实例也收到了类似的律师函。Nitter 网站目前显示以下公告：2026 年 8 月 24 日，X 公司向 Nitter 发出停止侵权律师函，要求永久关闭 Nitter 的各个实例，并删除项目代码仓库。

四 | Nitter.net 目前已经下线，项目开发暂时停止。我正在寻求法律建议，目前不会进一步评论相关细节。

五 | 感谢过去七年来所有使用、托管、打包、捐赠以及参与 Nitter 项目开发的人。TechCrunch 已看到 X 发出的律师函。X 在信中指控，Nitter 通过其服务“非法使用并规避 X 的应用程序编程接口（API）及相关数据”。X 表示，已有证据表明 Nitter 抓取了 X 的数据，并访问了 X 账号和会话令牌，违反了 X 的相关规则。X 的律师表示，这些行为违反了“多项州和联邦法律”，包括但不限于《得克萨斯州计算机有害访问法案》（Texas Harmful Access by Computer Act，§ 143.001 和 § 33.02）以及《兰哈姆法案》（Lanham Act，15 U.S.C. §§ 1114、1125）。律师函要求 Nitter 在美国东部时间 8 月 25 日下午 5 点之前关闭相关服务。

六 | 严格打击所谓的网络爬虫并非 X 独有的做法。Meta 也曾多次将相关爬虫服务告上法庭。如今，大多数大型社交网络都会限制第三方阅读器的使用，要求用户登录账号，并通过官方应用访问网站内容。这样一来，平台便可以追踪用户行为，并向用户展示个性化广告。

七 | 对于那些只想浏览内容、不愿注册账号的用户来说，这无疑令人失望。此前，Nitter 及其各个实例为用户提供了一种方便的方式，让他们无需注册 X 账号，也能关注特定人士在 X 上发布的内容。如今，这些用户要么放弃这种访问方式，要么按照 X 所希望的那样，注册账号并登录平台。

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