It's about 2 light-years long and half a light-year wide. It's located about 2, 000 light years away in the direction of the Constellation Cygnus.(它大約有2光年長、半光年寬，位于天鵝座方向，距地球約2,000光年。)

Captured here are the top of a three-light-year-tall pillar of gas and the dust that is being eaten away by the brilliant light from nearby bright stars.(照片所捕獲的是由氣體和塵埃所組成，高達3光年的巨柱的頂端。它被附近明亮恒星們的耀眼光芒所遮蓋。)

For the last three years, light shows on the Bund have been successfully held for New Year's Eve celebrations, but this year the light show was canceled and there were fewer police on hand.(在過去的三年里，外灘的燈光表演在新年前夜的慶祝活動上成功舉辦，但今年的燈光表演被取消了，現場的警察也減少了。)

It spans about 3,000 light-years in diameter, compared to the Milky Way's 100,000 light-year diameter.(它的直徑大約為3000光年，而銀河系的直徑有100000光年。)

By 2011 debris in the center of the ring, which is about a light-year in diameter, was blazing more intensely as the supernova entered a new stage of stellar demise.(到2011年為止，因為這個超新星進入了星球消亡的新階段，所以這環物質中心直徑大約是一光年的碎片燃燒的更加強烈了。)

For six months of the year, there is hardly any light at the poles.(一年中的6個月里，地球的兩極幾乎沒有任何光線。)

In MACSJ0717, a 13-million-light-year-long stream of galaxies, gas and dark matter -- known as a filament -- is pouring into a region already full of galaxies.(在130萬光年長的MACSJ0717，氣體和暗物質（就像燈絲一樣）正在進入一個已經充滿了星云的地帶。)

A light-year love already has come to an end, how to let we die of love rebirth?(一光年的愛戀已到了盡頭，如何讓我們死去的愛重生？)

This image was produced by combining a dozen Chandra observations made of a 130-light-year region in the center of the Milky Way.(這張照片是多張錢德拉天文臺的照片合成的，顯示的是130光年遠的銀河系的中心部分。)

The visible universe contains at least 10100 bits of entropy, which could in principle be packed inside a sphere a tenth of a light-year across.(整個可見宇宙起碼含有10100位元的熵，這麼多的熵原則上可以塞進直徑為1/10光年的圓球內。)