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Spotting these rings from a backyard telescope is a treat.
從后院的望遠(yuǎn)鏡觀察這些土星環(huán)是一種不錯的選擇。
In an instant, they can all but disappear when Saturn tilts toward the sun.
在一瞬間, 當(dāng)土星朝太陽傾斜他們會全部消失。
The overwhelming thing that a US space tourist would be struck by is how incredibly thin they are.
令人震驚的是美國的太空游客們也將會因其極為稀薄而受困。
They are no thicker than about one or two stories in a modern day building.
他們和當(dāng)代建筑的一層或者兩層相比不是很厚。
Interested in seeing for yourself? Strap in, space travelers, it's quite a ride.
為看到自己感興趣嗎?系好安全帶，太空旅行者們,這是一次非常快的旅程。
After seven years and a billion miles of space, the Cassini-Huygens spacecraft faces its greatest challenge on June 30th, 2004.
經(jīng)過七年和十億英里的太空旅程,在2004年6月30日，卡西尼·惠根斯航天器面臨最大的挑戰(zhàn)。
注：聽力文本來源于普特
