标签：行星旅行指南 相关文章
London is certainly one of the most iconic cities in the world. Its monuments, parks and sights have appeared within so many books, movies and songs. Its citizens are famously colorful and diverse, and its culture is extensive and unique. For the abo
轻松英文阅读
Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy wit
国家地理2008年
A planet called HD 209458b, aka Osiris, orbits its star so closely that it is losing some of its atmosphere to the stellar wind. It may thus have a cometary tail Whaddya get when you cross a planet with a comet? Well, HD 209458b looks like a candidat
60秒科学
Mining asteroids 小行星采矿 Going platinum 小行星采矿淘铂去 Mining metals from asteroids seems a bonkers idea. But could it work? 小行星采矿这想法听似疯狂，但行得通吗？ CAN reality trump art? That was the question hove
经济学人综合
These are just bold first steps on a journey that's just begun. Even before the mission is over, Cassini has left a thirst for a return trip. Planetary explorer Jonathan Lunan and aeronautical pioneer Julia Nod think they know the perfect way to do i
自然百科2012年
Everyone is familiar with the rings of Saturn. But what would you highlight if it were you sending back the postcards? Every tour itinerary has one main attraction. With Saturn, you just can't miss the rings. As imaging team leader for Cassini, Carol
自然百科2012年
And the icy grains on the Saturnian beaches are washed by passing traffic. When a moon comes by, it creates a wake just like a motor boat creates a wake that goes behind it. And I kind of imagine the ring particles doing an intricate cosmic dance aro
自然百科2012年
We are interested in studying seasonal changes on Saturn, because of its extremes affected the rains. Already we know the sky was blue, when the northen hemisphere came out of the shadow and it's now turn sort of pinkish yellowish, hazy color, becaus
自然百科2012年
The by-product of billions of years of production from the chemical smog factory in the upper atmosphere, the grains in Titan's dunes may literally fall from the sky. Like a rain of flash-frozen coffee grounds, they are swept by the wind into deep pi
自然百科2012年
Saturn might be the second largest planet in the solar system, but like gas giant neighbor Jupiter, its a triumph of show over substance. Saturn, first of all is a big giant gas ball, actually its a big giant ball of fluid, and the outer parts of it
自然百科2012年
With Saturn's 62 known moons, Cassini finds itself in good company without of this world photo opportunity to make even a seething professional gasp. Saturn is the most photogenic planet in all the solar system, so I just, you know, I mean, you could
自然百科2012年
The Prime Meridian(本初子午线) here is the longitude, the mark on the ground, from which all great voyages are measured. This is the view back to our remarkable home planet/ that the first human out here can look forward to, a distant blue dot l
自然百科2012年
Today we know that these are the stars that are close to us, and that they turn with the earth around the sun. 今天我们知道，那是和地球一道绕着太阳转动的星星。 They are called planets. 人们称它们为行星。 But the ancie
世界小史
Star Wars fans love Tatooine and its twin suns, but astronomers working with one of the worlds biggest telescopes have done Luke Skywalkers home planet one better. 《星球大战》中的塔图因星球（Tatooine，天行者家族的故乡行星）以
阅读空间
No planet beats Saturn for jaw-dropping beauty. Saturn is the most photogenic planet in all the solar system. Some of the pictures are to die for. But the postcards only tell part of the story. Beauty is only skin deep. It really is rolling and seeth
自然百科2012年
Researchers are now pretty certain there's a ninth planet in the solar system. 研究人员如今相当确定，太阳系中存在着第九颗行星。 Konstantin Batygin and Mike Brown, two CalTech scientists, say the new planet is about 10 times th
阅读空间
Like Mercury, the earth takes a beating from the sun's violent temper. Flares, sun storms and other solar hissy fits can cause electronic mayhem for the satellites that roam above our heads. Fortunately, the earth is protected from this radiation by
自然百科2012年
模仿句子：The object, which has been nicknamed Planet Nine by researchers of the California Institute of Technology, is orbiting billions of miles beyond Neptune. 翻译：这一被加州科技研究所研究者命名为第九行星的星体，正
英音模仿秀
Apart from much else, our lively interior created the outgassing that helped to build an atmosphere 不说别的，我们活跃的内部使大量气体喷涌而出，帮助建立了大气层， and provided us with the magnetic field that shields us
万物简史
Hello, I am Marion Marshall with the BBC news. Billions of dollars have been wiped off stock markets around the world because growing concern about plunging oil prices and fears about economic slowdown. In New York, the Dow Jones Index close 1.5% dow
中英双语新闻