Mashable 05月17日 18:04
Private lunar spacecraft sends home breathtaking moon snapshot
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日本公司ispace的Resilience着陆器正在进行第二次登月尝试,目前已进入环月轨道。该探测器在距离月球表面约62英里的高度飞行,并发布了首张环月轨道照片,展示了其携带的微型漫游车Tenacious。本次Hakuto-R任务计划于6月5日进行着陆,目标是月球北部的Mare Frigoris区域。如果着陆成功,着陆器将在月球表面进行为期两周的实验。ispace曾在2023年4月尝试登月,但因燃料耗尽而失败。此次任务吸取了上次的经验,并进行了充分的准备,以确保登月成功。

🚀ispace的Resilience着陆器已成功进入环月轨道,为第二次登月尝试做准备。探测器目前在距离月球表面约62英里的高度飞行,并发布了首张环月轨道照片。

📸照片中不仅展示了在太空中飞行的探测器,还展示了隐藏在右下角盖子下的微型漫游车Tenacious。这张照片是由安装在着陆器顶部的摄像头拍摄的。

📅Hakuto-R任务计划于美国东部时间6月5日下午3:24(日本时间6月6日)在月球北部的Mare Frigoris区域附近着陆。直播将于此时间前一小时开始,并提供英文翻译。

🔬如果Hakuto-R任务成功着陆,它将在月球表面进行为期两周的实验,然后在寒冷的月夜关闭电源。黑暗带来的-270华氏度的低温,即使是机器人也无法承受。

A Japanese commercial spacecraft is zeroing in on its second attempt at a lunar landing, now flying laps around the moon

The company ispace entered lunar orbit more than a week ago, sending its Resilience lander soaring about 62 miles above the surface at its closest approach. For days, fans have asked the company executives to release spacecraft images to show its latest achievement. They finally did on May 16. 

The new image not only captures the spacecraft swooping by the moon in space but showcases Tenacious, its accompanying micro rover, hidden under a cover in the lower right corner. A camera mounted to the top of the lander snapped the photo. 

"Hello from lunar orbit!" the company said in a post on X. 

If the Hakuto-R mission aces the landing, it will spend two weeks running experiments on the lunar surface before powering down for the brutally cold lunar night. Credit: ispace infographic

Resilience was one of two spacecraft headed to the moon on a SpaceX Falcon 9 rocket in mid-January. Its travel companion, Firefly Aerospace's Blue Ghost lander, took a faster route and touched down on the surface March 2. Though Firefly wasn't the trailblazer — the first private robotic lander to make the journey to the surface occurred last year — it was the first to get its lander there upright and in one piece.

But ispace's lander, a partnership with Japan's space agency JAXA, has taken a longer journey to save on fuel, flying solo through space for the past four months. The so-called Hakuto-R mission is gearing up for a landing near the center of Mare Frigoris at 3:24 p.m. ET on June 5. (It will be June 6 in Japan.) Livestream coverage will begin about one hour earlier, at 2:15 p.m. ET, with English translation. 

The event will mark the company's second try, following a failed landing in April 2023. The spacecraft ran out of fuel and crashed on the moon. 

"We have successfully completed maneuvers so far by leveraging the operational experience gained in Mission 1, and I am very proud of the crew for successfully completing the most critical maneuver and entering lunar orbit," said ispace CEO Takeshi Hakamada in a statement. "We will continue to proceed with careful operations and thorough preparations to ensure the success of the lunar landing." 

Landing on the moon remains onerous — demonstrated by numerous flopped landings. Though Firefly succeeded in March, another U.S. company, Intuitive Machines, didn't fare as well less than a week later, ending up on its side in a crater. 

The moon's exosphere provides virtually no drag to slow a spacecraft down as it approaches the ground, according to NASA. Furthermore, there are no GPS systems on the moon to help guide a craft to its landing spot. Engineers have to compensate for that from 239,000 miles away.

If the Hakuto-R mission aces the landing, it will spend two weeks running experiments on the lunar surface before powering down for the brutally cold lunar night. Not much can survive the -270 degrees Fahrenheit brought on by darkness — not even robots

Right now, Resilience is whizzing between 2,000 and 4,200 mph. As it whips through space, company engineers are performing multiple flight correction maneuvers to reel the spacecraft in and lower its energy. That will allow the team to get the spacecraft oriented toward its landing target. 

After the botched landing attempt two years ago, Yuichi Tsuda, a professor of astronautical science at Tokyo University, gave the flight controllers words of encouragement. 

"History can be made only by those who (face) challenges, and challenges will not be possible without taking a risk," Tsuda said. "The risk can be taken only by those who dream. So ispace teams, you are all excellent dreamers."

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