Russia moon probe crash likely left 33-foot-wide crater on the lunar surface, NASA images show_我的网站
一 | 昨天，杭州出现较大范围雷阵雨，局部暴雨。 Russia's Luna-25 probe likely left a 33-foot-wide crater on the surface of the moon last month when it lost control and crashed down, NASA said Thursday, revealing images that show the suspected impact site.Russia's first moon mission in 47 years ended in failure on August 19 when the Luna-25 probe smashed into the moon after a thruster firing went awry, cutting off communications and putting the spacecraft on the wrong orbital path, according to Roscosmos, the Russian space agency.NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft captured images last week of what the U.S. space agency described as a "new crater" after Roscosmos published an estimate of where the probe had struck.During the descent to the surface on August 19, the Russian spacecraft Luna-25 experienced an anomaly that caused it to smash into the moon's surface. The faiint arrow in this NASA image shows where the agency believes the probe made impact. NASA's Goddard Space Flight Center/Arizona State University "Since this new crater is close to the Luna-25 estimated impact point," NASA wrote in a statement, "the LRO team concludes it is likely to be from that mission, rather than a natural impactor." Moscow has set up a commission to investigate exactly why Luna-25 crashed.The failure was a major disappointment for the Russian space program, which was attempting to up its game amid renewed interest in the moon's southern polar region, where ice deposits may exist in permanently shadowed craters. Ice could offer future space missions a way to produce breathable air, water and even hydrogen rocket fuel.
The Russians have had little success with independent space exploration since the Luna-24 robot landed on the moon in 1976. It scooped up about six ounces of lunar soil and returned it to Earth in Russia's third successful robotic lunar sample return mission.Twelve NASA astronauts walked on the moon a half century ago in the agency's Apollo program, but no Russian cosmonauts ever made the trip. Russia's only previous post-Soviet deep space robotic missions, both targeting Mars, ended in failure.
Former NASA astronaut breaks down India's moon landing04:34Luna-25 was an attempt to pick up the torch and put Russia back into a new space race of sorts, as the U.S., China, India, Japan and the private sector all plan multiple moon missions that could lay the foundations for lunar bases and eventual flights to Mars.India's Chandrayaan-3 Vikram lunar lander made a historic touch-down near the moon's south pole just several days after the Russian probe crashed. It delivered a lunar rover that has already sent back data from soil samples.
昨天夜里，雷阵雨继续“上线”，我市出现明显的分散性雷阵雨，呈面弱点强特征，富阳西部、临安东部、建德南部和淳安南部出现单点暴雨，15日19时-16日07时全市面雨量4毫米，共20站累计降水超过50毫米，5站累计降水超过100毫米，最大富阳万市镇众缘村118.2毫米，最大小时雨强淳安大墅镇茅头尖村60.6毫米。
前几天，受低涡切变和冷空气共同影响，雷阵雨的动力条件较好，同时充沛的水汽不断输送，为强降雨“添柴加火”。经历了连续几天的强降雨后，今天（16日）终于进入尾声。与前几天相比，今天低层切变明显减弱，动力条件随之转差，大范围降水将明显收敛，但局地依然可能出现较强降雨。预计今天中午阴到多云，部分地区有时有阵雨，下午起转多云，其中午后到前半夜部分有阵雨或雷雨，南部县市局部大雨到暴雨，有雷雨时局部可伴有短时大到暴雨和雷雨大风等对流性天气。明起，杭州天气大转折！强降雨进入尾声真正的天气转折，将出现在明天。明天起，副热带高压加强西伸，杭州上空的天气格局将逐渐发生变化，降水从前几天较大范围的阵雨或雷雨天气，转为以午后分散性雷阵雨为主，天气也将逐渐回归夏日应有的节奏。需要提醒的是，虽然强降雨进入尾声，并不意味着防范工作可以马上结束。连续多日降雨后，山区、河道附近以及低洼地区仍需关注前期累积降雨可能带来的山洪、滑坡、泥石流和城乡积涝等次生灾害。外出时请及时关注最新气象预警信息，合理安排出行。温馨提示前期累计雨量大，请注意防范短时强降水可能诱发的山体滑坡、泥石流、小流域山洪和城乡内涝等次生灾害。市区天气预报杭州市气象台8月16日10时发布17日（周一）：多云，午后局部有阵雨或雷雨，26~33℃，偏东风2~3级；18日（周二）：阴到多云，有时有阵雨或雷雨，26~33℃，偏东风2~3级；19日（周三）：多云，午后局部有阵雨或雷雨，27~34℃，偏东风2~3级；20日（周四）：多云，午后部分有阵雨或雷雨，25~33℃，偏东风2~3级；21日（周五）：多云到阴，午后有时有阵雨或雷雨，25~33℃，偏东风2~3级；22日（周六）：多云到阴，午后有时有阵雨或雷雨，25~33℃，东南风2~3级。资料/市气象局。
