NASA的毅力号火星车打破了火星上行驶里程纪录 NASA表示毅力号在火星上已行驶45.2公里，打破了机遇号保持的星际行驶距离纪录，其系统可能一直工作到2030年代。
NASA’s Perseverance rover breaks record for off-planet driving on Mars NASA says Perseverance has driven 45.2km on Mars, breaking the off-planet distance record set by Opportunity, and its systems may keep working into the 2030s.
该火星车正在探索杰泽罗陨石坑及其附近的古老地形，NASA表示它可能有助于解释火星早期的地质和过去富含水的条件。
The rover is exploring Jezero Crater and nearby ancient terrain, where NASA says it may help explain Mars' early geology and past water-rich conditions.
毅力号的自动导航系统实现了大部分行驶的自主化，NASA表示2025年发现的可能生物标志是其目前最大的成就。
Perseverance's AutoNav system has made most drives autonomous, and NASA says a 2025 finding of a possible biosignature is its biggest achievement so far.
AI生成 华盛顿 - NASA的机器人毅力号火星车现在在除地球以外的任何世界表面行驶的距离超过任何其他车辆，自2021年抵达火星以来累计行驶45.2公里，美国航天局于10月13日表示。
AI generated WASHINGTON - NASA’s robotic Perseverance rover has now driven farther than any other vehicle on the surface of any world other than Earth, racking up 45.2km since arriving on Mars in 2021, the US space agency said on Oct 13.
这辆车大小、六轮的火星车在其任务进行5年半时达到这一里程碑，任务目标是探索地球邻近行星火星上是否曾存在有利于微生物生命的条件。在此过程中，它正在访问太阳系中曾遇到的最古老的地形之一。
The car-sized, six-wheeled rover reached the milestone 5-1/2 years into its mission to explore if conditions conducive to microbial life ever existed on Earth’s neighbour. In doing so, it is visiting some of the most ancient terrain ever encountered in the solar system.
“毅力号的工程硬件和仪器状况极佳，所有冗余系统仍然可用，”加州NASA喷气推进实验室的Steven Lee对路透社表示。
“Perseverance’s engineering hardware and instruments are in excellent shape with all redundant systems still available,” Steven Lee of NASA’s Jet Propulsion Laboratory in California, told Reuters.
“对所有系统的最近评估得出结论，它们能够良好运行直至2030年代，甚至可能更久，”李补充道，他是NASA两辆火星车毅力号和好奇号的项目经理。
“A recent assessment of all systems concluded that they are capable of operating well into the 2030s, likely beyond,” added Lee, the project manager for NASA’s two Mars rovers, Perseverance and Curiosity.
毅力号已超过NASA机遇号在2004年至2018年期间在火星表面行驶的45公里之前的纪录。两者也都超过了任何月球车的行驶距离。
Perseverance has exceeded the previous figure of 45km driven on the Martian surface by NASA’s Opportunity rover from 2004 to 2018. Both also exceeded the driving distances of any lunar rover.
毅力号携带一套科学仪器，专注于杰泽罗陨石坑，这是火星北半球一个被认为曾被水淹没、数十亿年前曾存在湖盆的区域。
Perseverance, with its suite of scientific instruments, has focused on the Jezero Crater, a region in the northern hemisphere of Mars believed to have been flooded with water and home to a lake basin billions of years ago.
探测车在前往名为伊杜比（Idubi）区域的旅程中达到了这一里程碑，该区域位于陨石坑西缘外，该地区被昵称为“拉克·德·夏尔姆”（Lac de Charmes）。
The rover set the milestone in a journey toward an area called Idubi, through the region off the crater’s western rim nicknamed Lac de Charmes.
其伴侣探测车好奇号（Curiosity）正在火星赤道附近的盖尔陨石坑（Gale Crater）中行进。李补充说，毅力号没有减速的迹象。
Its companion rover, Curiosity, rolls along in the Gale Crater near the Martian equator. Perseverance is showing no signs of slowing down, Lee added.
他说，其移动系统机制正在接受测试，以证明它能够行驶100公里或更远，测试的硬件相当于150公里至300公里的行驶里程。
Its mobility system mechanisms are being tested to show it can drive 100km or more, he said, with the hardware to be tested to the equivalent of 150km to 300km in the effort.
美国国家航空航天局（NASA）将毅力号成功的主要因素归功于其自动驾驶能力——一种名为AutoNav的自主导航系统。李说，其90%的行驶是自主完成的，无需人工干预。
NASA attributed a major role in Perseverance’s success to its self-driving capability, an autonomous navigation system called AutoNav. Lee said 90% of its drives are done autonomously, with no human intervention.
“毅力号会拍摄前方地形的立体图像，生成一个3D软件地图，并选择通往行驶目标的最安全路径，”他说。
“Perseverance takes stereo images of the terrain ahead, generates a 3D software map, and selects the safest path towards a drive goal,” he said.
另一个关键部件是视觉计算元件（Vision Compute Element），这是一种快速协处理器计算机，使探测车能够非常快速地处理图像并运行其自动驾驶软件，几乎在整个行驶过程中持续运行，李补充道。
Another key component is the Vision Compute Element, a fast co-processor computer that allows the rover to process images and run its self-driving software very quickly, almost continuously during drives, Lee added.
他指出，这与之前的探测车形成对比，之前的探测车在每个行驶段之前都需要停下来“思考”。
That contrasts with previous rovers, which needed to pause to “think” before each drive segment, he said.
“毅力号建立在我们过去火星探测车29年的遗产之上——索杰纳（Sojourner）、精神号（Spirit）、机遇号（Opportunity）和好奇号（Curiosity）——每一辆都吸收了之前的经验教训，并提升了我们在另一个世界行驶的能力，”李说。
“Perseverance builds on the 29-year legacy of our past Mars rovers – Sojourner, Spirit, Opportunity and Curiosity – each incorporating prior lessons and improving our ability to drive on another world,” Lee said.
潜在生物标志物李说，探测车最大的成就几乎肯定是其在2025年揭晓的潜在生物标志物的发现，即可能存在古代微生物生命的迹象。
Potential biosignature Lee said the rover’s biggest achievement was almost certainly its discovery, unveiled in 2025, of a potential biosignature, or possible sign of ancient microbial life.
这一发现是在被认为形成于32亿至38亿年前的红色岩石中发现的，这些岩石位于曾经填充杰泽罗陨石坑（Jezero Crater）的湖泊的河流通道中。
This was found in reddish rock believed to have formed 3.2 billion to 3.8 billion years ago in a river channel feeding the lake that once filled Jezero Crater.
李说，拉克·德·夏尔姆（Lac de Charmes）地形可能提供早期行星地质过程的线索，例如大型陨石撞击的影响。杰泽罗陨石坑正是由这样的撞击在火星早期历史中形成的。
The Lac de Charmes terrain, Lee said, may yield clues to early planetary geological processes, such as the effects of large meteorite impacts. Jezero Crater was formed by such an impact early in Martian history.
李引用了轨道证据，表明陨石坑边缘的一些区域曾经是拥有温热或热水地下水的热液系统。
Lee cited orbital evidence that some areas of the rim were once hydrothermal systems with warm or hot groundwater.
他补充说：“这些区域曾可能提供了适宜生命存在的温暖、含水的地下环境。” “事实上，一些古生物学家假设地球上的生命正是在这类环境中开始的。” 该探测车最初的任务仅设想行驶20公里。
“These areas may once have provided a warm, watery subsurface environment conducive to life,” he added. “Indeed, some paleontologists hypothesize that life on Earth began in such environments.”The rover’s original mission envisaged just 20km of driving.
美国宇航局最近批准了对其任务的延期，以探索陨石坑边缘，直至大约2028年底。
NASA recently approved an extension of its mission to explore the crater rim until roughly the end of 2028.
李表示，该探测车的钚基动力系统正按预期运行，并补充说它仍“有许多年可用的能源。” 路透社
The rover’s plutonium-based power system is performing as expected, Lee said, adding it has “many years of useful energy still available.”REUTERS