国产一级片一区二区三区Iav黄色免费看I久久久久国产成人免费精品免费I人成午夜视频I97福利在线I国产麻豆剧传媒免费观看I久久爱www.I一区二区三区视频在线I久久免费高清I麻豆国产精品永久免费视频I91尤物国产尤物福利在线播放

NASA's InSight lander "hears" Martian winds

Source: Xinhua| 2018-12-08 07:36:03|Editor: mmm
Video PlayerClose

LOS ANGELES, Dec. 7 (Xinhua) -- NASA's InSight lander, which touched down on Mars just 10 days ago, has provided the first ever "sounds" of Martian winds on the Red Planet, said NASA on Friday.

InSight sensors captured a haunting low rumble caused by vibrations from the wind, estimated to be blowing between 10 to 15 mph (5 to 7 meters a second) on Dec. 1, from northwest to southeast, according to NASA.

The winds were consistent with the direction of dust devil streaks in the landing area, which were observed from orbit, said NASA.

"Capturing this audio was an unplanned treat," said Bruce Banerdt, InSight principal investigator at NASA's Jet Propulsion Laboratory in Pasadena, California. "But one of the things our mission is dedicated to is measuring motion on Mars, and naturally that includes motion caused by sound waves."

According to NASA, two very sensitive sensors on the spacecraft detected these wind vibrations: an air pressure sensor inside the lander and a seismometer sitting on the lander's deck, awaiting deployment by InSight's robotic arm.

The two instruments recorded the wind noise in different ways. The air pressure sensor, which will collect meteorological data, recorded these air vibrations directly. The seismometer recorded lander vibrations caused by the wind moving over the spacecraft's solar panels, which are each 7 feet (2.2 meters) in diameter and stick out from the sides of the lander like a giant pair of ears.

This is the only phase of the mission during which the seismometer, called the Seismic Experiment for Interior Structure (SEIS), will be capable of detecting vibrations generated directly by the lander, said NASA.

In a few weeks, it will be placed on the Martian surface by InSight's robotic arm, then covered by a domed shield to protect it from wind and temperature changes. It will detect the lander's movement through the Martian surface, said NASA.

SEIS is recording vibrational data that scientists later will be able to use to cancel out noise from the lander when SEIS is on the surface, allowing them to detect better actual marsquakes.

InSight landed safely at Elysium Planitia on Mars on Nov. 26, kicking off a two-year mission to explore the deep interior of the Red Planet.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001376585011
主站蜘蛛池模板: 香蕉久久久久久久av网站| 天天天做夜夜夜做无码| 蜜臀av人妻国产精品建身房| 国产亚洲色欲色一色www| 亚洲精品无码乱码成人| 欧美成人aaaa免费全部观看| 在线 亚洲 国产 欧美| 日韩去日本高清在线| 国产精品无码成人午夜电影| 少妇下面好紧好多水真爽播放| 免费无遮挡无码视频在线观看| 国产a三级久久精品| 国产日产欧产精品精品蜜芽| 九九精品超级碰视频| 在线播放国产不卡免费视频 | 亚洲熟女乱色一区二区三区| 97久久超碰亚洲视觉盛宴| 大地资源在线播放观看mv| 日韩av无码中文一区二区三区| 欧美老熟妇乱子伦视频| 久久亚洲精品人成综合网| 国内精品伊人久久久影视| 久久国产精品99国产精| 狠狠综合久久综合88亚洲| 国产99视频精品免视看9| 夜夜爽8888天天躁夜夜躁狠狠| 免费三级现频在线观看播放| 久久亚洲精品无码va大香大香 | 国产精品久久久久久人妻| 无码熟妇人妻av影片在线| 最新亚洲人成无码www| 国产精品久久久久久久久久久久人四虎| 高清无码免费| 福利一区二区三区视频在线观看| 亚洲夂夂婷婷色拍ww47| 99re6在线视频精品免费下载| 国产一区二区精品久久岳| 亚洲中文字幕av不卡无码| 影音先锋中文字幕无码资源站| 国产成人精品123区免费视频 | 国产午夜影视大全免费观看|