无码少妇一区二区三区免费,妓院一钑片免看黄大片,国语自产视频在线,亚洲AV成人无码国产一区二区,激情久久综合精品久久人妻,日韩免费毛片,综合成人亚洲网友偷自拍,国内自拍视频在线观看,欧美熟妇性xxxx交潮喷,国产成人精品一区二免费网站

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
99久久国产综合精品女图图等你 | 中年国产丰满熟女乱子正在播放| 欧美日韩精品一区二区视频| 奇米精品一区二区三区在线观看 | 乱子伦av无码中文字幕| 被黑人操的嗷嗷叫视频| 夜色网| 亚洲国产午夜成人福利AV| 视频二区国产精品职场同事| 永久免费精品性爱网站| 成年女人碰碰碰视频播放| 亚洲欧美成人中文日韩电影| 精品国产免费Av无码久久久| 日本亚洲午夜一区二区| 永久国产盗摄一区二区色欲| 久久婷婷五月综合色欧美蜜芽| 宅男久久精品国产亚洲av麻豆| 啊灬啊别停灬用力啊视频| 青草亚洲地区在线视频| 精品无码一区在线观看| 国产午夜精品久久精品电影| 少妇人妻综合久久中文字幕| 国产无遮挡裸体免费视频在线观看| 欧美黑人粗暴多交高潮水最多| 诱人的老师hd中文字幕| 精品动漫一区二区无遮挡 | 国产丝袜美腿诱惑在线观看| 无码内射中文字幕岛国片 | 九九日本黄色精品视频| 久久婷婷五月综合色欧美蜜芽| 久久久WWW成人免费毛片| 精品+在线+国产手机| 久久久这里只有精品10| 日本黄页网站免费观看| 久久涩综合一区二区三区| 亚洲综合无码精品一区二区| 国产日产精品久久久久久| 午夜无码国产18禁| 亚洲国产一区二区精品| 91亚洲免费| 久久久久久久久影院|