Alaska is known for its dark cold winters and long daylight summers. People venture there for its beautiful scenery， majestic vistas and to witness its spectacular light show virtually every night of the year. “ Witnessing the northern lights is spectacular. It's awe inspiring because you can't really explain what they are and why they are there，” a visitor said.
In ancient times， mythological gods were credited with this creation. But these mysterious lights get their powerful glow from the same awesome force that gives our planet life.
The sun is the source of energy for everything on planet earth， all life， all weather， and all activity that we know. Explosions and solar storms on the surface of the sun send charged particles known as solar winds hurtling towards earth. When they reach the earth's magnetic field the energy is transferred into visual light around the earth's Polar Regions. Realize the earth has magnetic field lines that loop out into space from the northern hemisphere to the southern hemisphere， arching away from the earth and it is those magnetic field lines that organize the solar storms that cause it to create auroras.
While scientists know the cause of the aurora， exactly how it affects earth is still in question. Though infrared cameras have captured solar storms， the aurora remains a mystery.
For creating the planet's greatest nighttime light show， the aurora makes our list at number one.
From the spitting lava of Kilauea， to the raging rapids3 of the Colorado， the natural wonders of the world are dynamic4 proof of this spectacular planet we call Earth. But ultimately it's our curiosity of their existence that's the most wondrous thing of all. And that is our honor to bear witness to the planet's finest legacythe Ultimate5 Ten Natural Wonders.
阿拉斯加以其夜長晝短的陰冷冬季與長日照的夏季而。人們冒險來到這里觀賞它美妙的景色、壯麗的風(fēng)光，并親眼看看一年中幾乎每晚都會出現(xiàn)的極光奇觀。“目睹北極光宛如身臨仙境，奇幻之至，既興奮又令人敬畏，因為你無法解釋它們是何物，為何而來，”一位游客說。
在古代，人們認(rèn)為是傳說中的神仙創(chuàng)造了這種景象。但實際上，這種神秘之光的強度光亮來自于同樣賦予地球以生命的令人敬畏的力量。
太陽是地球上萬物的能量之源，包括我們知道的所有生命、所有天氣和所有的活動。太陽表面的爆炸和太陽風(fēng)暴，把帶電粒子（即所謂的太陽風(fēng)）猛烈射向地球。當(dāng)它們到達(dá)地球磁場之后，能量便在地球極圈地帶轉(zhuǎn)化成可視的光線。要知道，地球上的磁場線以環(huán)形在空間從北半球拋向南半球，呈拱形覆蓋于地球上空，而正是這些磁場線對于太陽風(fēng)暴的作用形成了極光。
雖然科學(xué)家知道了極光的成因，但是它究竟如何影響地球仍是一個疑問。盡管紅外線攝像機能夠捕捉到太陽風(fēng)暴，而極光依然是一種神秘之物。
因為創(chuàng)造了地球上最偉大的夜光之舞，極光在我們的名單上排名第一。
從基拉韋厄火山噴涌而出的巖漿，到科羅拉多滔滔的激流，這些世界自然奇觀生動地證明了我們稱之為“地球”的這個星球是多么獨特、美麗。然而最終而言，所有當(dāng)中最精彩的還是我們對這些景觀的好奇心。能夠見證這個星球上的遺產(chǎn)——十大自然奇觀，確實是我們的榮幸。
In ancient times， mythological gods were credited with this creation. But these mysterious lights get their powerful glow from the same awesome force that gives our planet life.
The sun is the source of energy for everything on planet earth， all life， all weather， and all activity that we know. Explosions and solar storms on the surface of the sun send charged particles known as solar winds hurtling towards earth. When they reach the earth's magnetic field the energy is transferred into visual light around the earth's Polar Regions. Realize the earth has magnetic field lines that loop out into space from the northern hemisphere to the southern hemisphere， arching away from the earth and it is those magnetic field lines that organize the solar storms that cause it to create auroras.
While scientists know the cause of the aurora， exactly how it affects earth is still in question. Though infrared cameras have captured solar storms， the aurora remains a mystery.
For creating the planet's greatest nighttime light show， the aurora makes our list at number one.
From the spitting lava of Kilauea， to the raging rapids3 of the Colorado， the natural wonders of the world are dynamic4 proof of this spectacular planet we call Earth. But ultimately it's our curiosity of their existence that's the most wondrous thing of all. And that is our honor to bear witness to the planet's finest legacythe Ultimate5 Ten Natural Wonders.
阿拉斯加以其夜長晝短的陰冷冬季與長日照的夏季而。人們冒險來到這里觀賞它美妙的景色、壯麗的風(fēng)光，并親眼看看一年中幾乎每晚都會出現(xiàn)的極光奇觀。“目睹北極光宛如身臨仙境，奇幻之至，既興奮又令人敬畏，因為你無法解釋它們是何物，為何而來，”一位游客說。
在古代，人們認(rèn)為是傳說中的神仙創(chuàng)造了這種景象。但實際上，這種神秘之光的強度光亮來自于同樣賦予地球以生命的令人敬畏的力量。
太陽是地球上萬物的能量之源，包括我們知道的所有生命、所有天氣和所有的活動。太陽表面的爆炸和太陽風(fēng)暴，把帶電粒子（即所謂的太陽風(fēng)）猛烈射向地球。當(dāng)它們到達(dá)地球磁場之后，能量便在地球極圈地帶轉(zhuǎn)化成可視的光線。要知道，地球上的磁場線以環(huán)形在空間從北半球拋向南半球，呈拱形覆蓋于地球上空，而正是這些磁場線對于太陽風(fēng)暴的作用形成了極光。
雖然科學(xué)家知道了極光的成因，但是它究竟如何影響地球仍是一個疑問。盡管紅外線攝像機能夠捕捉到太陽風(fēng)暴，而極光依然是一種神秘之物。
因為創(chuàng)造了地球上最偉大的夜光之舞，極光在我們的名單上排名第一。
從基拉韋厄火山噴涌而出的巖漿，到科羅拉多滔滔的激流，這些世界自然奇觀生動地證明了我們稱之為“地球”的這個星球是多么獨特、美麗。然而最終而言，所有當(dāng)中最精彩的還是我們對這些景觀的好奇心。能夠見證這個星球上的遺產(chǎn)——十大自然奇觀，確實是我們的榮幸。