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耗时 6.5 小时，两名航天员出舱完成国际空间站故障通信天线更换_我的网站

A |     New York, Oct 12 (UNI) Tesla founder Elon Musk has denied reports he spoke to Russian President Vladimir Putin before posting a Twitter poll with his suggestions for ending Russia's invasion of Ukraine taht caused a lot of controversy.
Ian Bremmer, head of the Eurasia Group political risk consultancy, alleged that Musk had personally told him about the conversation with Putin. But Musk has now refuted this, the BBC reported.
In a newsletter, Bremmer wrote that Musk told him the Russian president was "prepared to negotiate", but only if Crimea remained under Russian control, if Ukraine accepted a form of permanent neutrality, and if Kyiv recognised Russia's annexation of Luhansk, Donetsk, Kherson and Zaporizhzhia.
Musk tweeted: "I have spoken to Putin only once and that was about 18 months ago. The subject matter was space."
Last week, the Tesla CEO asked his 107.7 million followers to vote on ways to resolve the Ukraine war.
The suggestions included a proposal to hold votes in parts of Ukraine occupied by Russia that the Kremlin says it has annexed. His comments were welcomed by Moscow, the BBC said.
The multi-billionaire said: "Russia leaves if that is will of the people."
Putin has already declared four Ukrainian regions to be part of Russia, following so-called referendums denounced as fraudulent by Kyiv and its Western allies. Russia does not fully control any of the four regions.
Musk also suggested the world should "formally" recognise Crimea -- illegally annexed by Moscow in 2014 -- as part of Russia.
Bremmer said the SpaceX boss told him that Putin said the goals would be accomplished "no matter what" and that there was the potential of a nuclear strike if Ukraine invaded Crimea.
But Musk has since denied the reports.
Ukrainian Foreign Minister Dmytro Kuleba said people proposing Ukraine give up on its people and land "must stop using word 'peace' as an euphemism to 'let Russians murder and rape thousands more innocent Ukrainians, and grab more land'".
Russian chess grandmaster Garry Kasparov called Musk's tweet "moral idiocy, repetition of Kremlin propaganda, a betrayal of Ukrainian courage & sacrifice".
Kremlin spokesman Dmitry Peskov welcomed Musk's suggestions, stating: "It is very positive that somebody like Elon Musk is looking for a peaceful way out of this situation."
Early in the war, the billionaire gained widespread popularity in Ukraine after sending a number of his Starlink internet terminals to the country. He was subsequently invited to visit by Ukrainian President Volodymyr Zelensky.
But his recent tweets have seen that relationship sour, with Zelensky last week hitting out at his Twitter poll.
UNI ING。     8 月 26 日消息，在两名宇航员的努力下，国际空间站（ISS）外部两套天地通信天线中的一套重新恢复工作，宇航员如今再次可以通过这套设备与地面进行通信。

B | 当地时间 8 月 25 日，两名宇航员在一次太空行走中完成了故障天线组件的更换工作。注意到，美国国家航空航天局（NASA）宇航员阿尼尔 · 梅农和欧洲航天局（ESA）宇航员索菲 · 阿德诺此前曾在 8 月 18 日的一次太空行走中拆除故障天线。本周二，两人将备用天线安装到原位，并将损坏的天线组件从临时存放位置转移至空间站桁架结构上更为固定的长期存放位置。在此次太空行走中，梅农位于加拿大机械臂 Canadarm2 的末端，阿德诺则沿着空间站外部的扶手移动，与梅农会合。

C | 两名远征 75 任务乘组成员首先从空间站外部储存位置取出一套备用天地通信天线（SGANT）。

D | 随后，梅农携带备用天线被机械臂转移至 Z-1 桁架位置，并在那里完成天线安装，同时将其接入国际空间站的电力和数据系统。完成新天线安装后，梅农和阿德诺又取回了此前一次太空行走中临时存放在 Z-1 桁架上的故障天线。随后，位于机械臂末端的梅农将其转移至空间站桁架右舷一侧的外部储存平台 3 号（ESP-3）。此次更换工作源于这套天地通信天线自去年 11 月起出现故障。该设备已经无法继续跟踪 NASA 的数据中继卫星，因此失去使用能力。此后，国际空间站一直依靠另一套天线传输语音和关键数据，而此次维修完成后，整个通信系统重新恢复了冗余备份能力。此次太空行走于美国东部时间星期二上午 8 时 27 分开始，并在 6 个半小时后的下午 2 时 57 分结束，整个过程恰好持续 6.5 小时。

E | 这是为支持国际空间站组装、维护和升级而进行的第 283 次舱外活动。此次任务也是梅农个人的第 3 次太空行走，使其累计舱外活动时间达到 19 小时 20 分钟。

F | 对于阿德诺来说，这是她第 2 次进入太空真空环境开展舱外活动。她的累计太空行走时间因此增至 12 小时 53 分钟。此前，她成为首位进行太空行走的法国女性宇航员，也是历史上第 5 位完成太空行走的法国公民。此次任务还是国际空间站今年进行的第 6 次太空行走、远征 75 任务期间的第 2 次舱外活动，同时也是国际空间站第 98 次使用美国舱外机动装置（EMU）宇航服完成的太空行走。

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