[天] 火星大气的同位素比值

EXPLORATIONS - Ancient Martian Conditions Could Have Supported Life From VOA Learning English, this is EXPLORATIONS, in Special English. Im Kelly Jean Kelly. And Im Christopher Cruise. Today we report on recent scientific findings about the planet Ma

发表于:2018-12-07 / 阅读(88) / 评论(0) 分类 2013年VOA慢速英语(三)月

Longest Lunar Eclipse of the Century This is Whats Trending Today The longest lunar eclipse of the century will happen late Friday or early Saturday, depending on where you live. The American space agency NASA says the moon will move into the Earths

发表于:2018-12-08 / 阅读(77) / 评论(0) 分类 2018年VOA慢速英语(七)月

Authorities in Pennsylvinia say they're closing in on a man accused of a fatal ambush at a police barracks. They say an assault rifle and ammunition belonging to Eric Frein was found in the woods this weekend. 2 people are dead and dozens more hurt a

发表于:2018-12-15 / 阅读(131) / 评论(0) 分类 美联社新闻一分钟2014(九)月

Is There Life on Mars? For most of the 20th century, there has been life on Mars. Or, at least in the minds of the Earthlings, who inhabit its closest planetary neighbor. When at the end of the 19th century, the American astronomer Percival Lowell th

发表于:2018-12-30 / 阅读(125) / 评论(0) 分类 英语流行话题阅读:语境识词4500

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres definitely methane on Marsand there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mar

发表于:2019-01-08 / 阅读(129) / 评论(0) 分类 Scientific American(一)月

The clues are adding up to give a picture of a distant Martian past, when the planet had a thick atmosphere that was warm enough for water to stream on the surface. But now the waters gone, and the atmosphere is so thin that any water would boil away

发表于:2019-01-08 / 阅读(123) / 评论(0) 分类 Scientific American(十)月

AS IT IS 2013-06-14 NASA Scientists Still Dream of, and Plan for, Human Travel to Mars From VOA Learning English, this is As It Is. Welcome back. Im Caty Weaver. On the show today, we look into the future of space exploration. The American space agen

发表于:2019-01-12 / 阅读(94) / 评论(0) 分类 2013年VOA慢速英语(六)月

Water on Mars: What Does It Mean? 火星有水意味着什么? For centuries, humans have wondered whether there is life on Mars. Scientists have asked why Mars is losing its atmosphere. Last week, the question was answered with a song. The answer, i

发表于:2019-01-12 / 阅读(98) / 评论(0) 分类 2015年VOA慢速英语(十一)月

AS IT IS 2014-10-15 Spacecraft Sends 'Tantalizing' Information from Mars 飞船从火星发回诱人的信息 Scientists working on the year-long American mission to explore Mars hope that it will help solve the mystery of how the Red Planet lost mos

发表于:2019-01-12 / 阅读(83) / 评论(0) 分类 2014年VOA慢速英语(十)月

NASA's MAVEN Spacecraft Arrives at Mars 美国宇航局的Maven飞船到达火星 NASAs newest Mars probe, called MAVEN, has successfully entered its designated orbit around the red planet. Scientists will use its sophisticated instruments to try to

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2014年(九月)

I want to talk about 4.6 billion years of history in 18 minutes. That's 300 million years per minute. Let's start with the first photograph NASA obtained of planet Mars. This is fly-by, Mariner IV. It was taken in 1965. When this picture appeared, th

发表于:2019-01-18 / 阅读(103) / 评论(0) 分类 英语演讲

An American sci-fi/romance film centering around the first human born on Mars is going to land in Chinese cinemas on October 13th. The Space Between Us is about a boy named Gardner. His mother, an astronaut, dies soon after giving birth. The boy even

发表于:2019-01-19 / 阅读(125) / 评论(0) 分类 2017CRI中国国际广播电台

China's first Mars voyager mission is expected to be launched around 2020 and reach the Red Planet a year or so later. The computer generated images unveiled by the Chinese State Administration of Science, Technology and Industry for National Defense

发表于:2019-01-19 / 阅读(109) / 评论(0) 分类 2016CRI中国国际广播电台

In the four decades since our robots first arrived, the once fuzzy ball at the end of our telescopes has steadily focused into a red planet we can understand, and it is not a welcoming place. The problem is the atmosphere is so thin and cold that wat

发表于:2019-01-26 / 阅读(97) / 评论(0) 分类 自然百科2012年

EXPLORATIONS - Venus Express Spacecraft Explores Earth's Mysterious Sister PlanetBy Mario Ritter and Daniel Kirch Broadcast: Wednesday, May 10, 2006 (MUSIC) VOICE ONE: I'm Steve Ember. VOICE TWO: And

发表于:2019-01-30 / 阅读(93) / 评论(0) 分类 2006年慢速英语(五)月

Before we take this giant leap, we need to be able to carry everything needed for a three-year -round trip with us. This is a much larger effort than getting to the moon. Its the Apollo mission on steroids. At this point we know at least as much as t

发表于:2019-02-03 / 阅读(116) / 评论(0) 分类 自然百科2012年

BEIJING,Nov. 9 (Xinhuanet) Yinghuo-1, China's first interplanetary spacecraft, is set to hitch a ride with Russia's Phobos-Grunt Mars mission in the early hours on Wednesday, after a two-year delay. A Zenit-2SB rocket will carry Yinghuo-1 and Phobos-

发表于:2019-02-03 / 阅读(104) / 评论(0) 分类 英语新闻

From VOA Learning English, this is As It Is. Welcome back. Im Caty Weaver. On the show today, we look into the future of space exploration. The American space agency NASA has announced plans for a new effort to study the sun. And, NASA scientists are

发表于:2019-02-16 / 阅读(103) / 评论(0) 分类 英语语言学习

On earth, most of the methane in the atmosphere has been belched by living organisms, 在地球上,大气中的大部分甲烷都是由活着的生物体喷出的, so finding the gas on Mars would be happy news for seekers after extraterrestrial

发表于:2019-02-16 / 阅读(125) / 评论(0) 分类 经济学人科技系列

Regardless of their source, any methane molecules in Mars's atmosphere would, on the basis of experiments on Earth, be expected to hang around for centuries. 不论它从何而来,根据地球的实验,火星大气中的任何甲烷分子将有望徘

发表于:2019-02-16 / 阅读(127) / 评论(0) 分类 经济学人科技系列
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