标签：planets 相关文章
The Hubble telescope has given us spectacular pictures from space, but theyre not detailed enough to help us in our search for life in the trillions of galaxies across the universe. If tens of percent of stars have planets that could resemble the ear
VOA标准英语2018年(十一月)
SCIENCE IN THE NEWS - Venus Transits Sun for Last Time This Century JUNE SIMMS: This is SCIENCE IN THE NEWS, in VOA Special English. Im June Simms. SHIRLEY GRIFFITH: And Im Shirley Griffith. Today, we tell about the planet Venus and what the American
2012年VOA慢速英语(六)月
美国航天局倾力寻找生命之星 For decades, looking for life elsewhere in the universe meant listening for signals that could be from distant civilizations. But recent breakthroughs in space technology refocused some of that effort toward fi
VOA双语新闻 2014年7月
Pre-Listening Vocabulary revolution: to go around something (Earth revolves around the Sun.) rotation: the spinning of something (Venuss rotation is backwards.) axis: a real or imaginary line that something rotates on retrograde: in a backwards movem
Facts-事实
Weve all been hearing about ongoing Mars exploration, and how water probably used to be abundant there. And a water spewing volcano was recently discovered on a small moon orbiting Saturn. Water is one sign that life may exist or have existed at some
初学者听力文摘精选
AMERICAN MOSAIC -June 21, 2002: New 'Star Wars' Movie / Food Songs / Seeds of Peace HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magazine in Special English. (THEME) This is Steve Ember. On our
American Mosaic
This giant gas bag is built from the flimsiest materials in the universe. But for all its squishy bulk, its a great little mover. Jupiter spins at such a breakneck speed that it bulges at the equator, so fast in fact that a day here lasts less than t
自然百科2012年
Dad: What are you working on, honey? Mariko: Its a project for school about the Earth and its place in the universe. I have to write a report and build a model of what scientists can see with a telescope in space. Dad: I can help you with that. I was
地道美语播客
ROBERT SIEGEL, HOST: Biologist Jonathan Losos and I have at least one thing in common - we were both blown away by the late paleontologist Stephen Jay Gould's 1989 book Wonderful Life. Gould saw evolution as being all about odd contingencies, acciden
2017年NPR美国国家公共电台9月
Out Of This World: How Artists Imagine Planets Yet Unseen play pause stop mute unmute max volume 00:0004:30repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin
2016年NPR美国国家公共电台10月
Yesterday, astronomers announced that theyve discovered seven Earth-sized planets all orbiting the same star. The findings were published in a journal Nature. NASA says this is a record number of these kinds of planets orbiting this kind of star. It
CNN美国有线新闻2017年3月
Chaotic Orbits Could Cause Catastrophic Collision Isaac Newton said, I can calculate the motion of heavenly bodies, but not the madness of people. He meant that while people can be unpredictable, the planets are just the oppositethey glide through sp
2018年科学美国人4月
Astronomers have searched far and wide for a planet that are the right size and in the right place to support life. Well, maybe they should have set their sight a little close to the home. Because a new study suggests there may be earth-like planet j
Scientific American(二)月
We live amongst 200 billion stars, in the Milky Way galaxy, a vast cosmic city. The earth is located in a quiet neighborhood, in a safe neck of the woods. But what if we could take our planets on a journey through the galaxy? What wonders would be se
自然百科2011年
Luckily, the very biggest asteroids are few and far between. But there are still plenty of rocks out there that represent a significant danger to us. So, at the summit of an extinct Hawaiian volcano, Professor Nick Kaiser and his colleagues are searc
探索与发现2014年
Well,the early reports are that it is an ordinary chondrite and that means it willbe similar to this one. So this is really exciting for us as scientists becausewe want to know how the planets formed, what was around before the planets, whatthe envir
探索与发现2014年
By collecting and comparing meteorites, scientistshave been able to piece together a picture of how they form and these studieshave revealed some of the most remarkable rocks in the solar system. Few places in the world have got as many meteoritesas
探索与发现2014年
S. African Scientists Claim Discovery of First Comet Strike 南非科学家发现首个彗星曾撞击地球的证据 JOHANNESBURG South African researchers say they have found conclusive evidence of earth's first-ever known comet strike, about 28 mi
VOA常速英语2013年(十月)
By Paul Sisco Washington, DC 15 September 2006 watch New Planet report Scientists in Washington D.C. have announced the discovery of a new planet. It is the largest planet ever seen from Earth. New planet, HAT-P-1 It is just weeks since Pluto was re
2006年VOA标准英语（九月）
Everyone likes a vacation in a warm climate, but how about a trip to two planets that are as hot as hell? If you are walking on the surface of Mercury, you need one heck of a spacesuit. Mysterious Mercury appears lifeless and desolate, but hidden dee
自然百科2012年