1·Reflecting the light of nearby hot stars, NGC 2170 is joined by other bluish reflection nebulae, a compact red emission region, and streamers of obscuring dust against a backdrop of stars.
这反映了附近恒星的光热，2170星系是由其他蓝色反射星云，紧凑的红色发光区域，以及在模糊的背景下对恒星尘埃的飘带组成。
2·Astronomical images of the well-known Pleiades often show the cluster's alluring blue reflection nebulae, but they are washed-out here in the bright moonlight.
著名的昴星团在天文照片中常常以迷人的蓝色反射星云夺人眼目，但在这张照片上，它们因明亮的月光而失色。
3·The universe is an unimaginably vast space filled with planets, stars, systems, nebulae, gas, dust — and it's impossible for us to ever explore it all.
宇宙的浩瀚无涯超出想象，无数的恒星、行星、星系、星云、气体、尘埃充斥其间，让我们无法一一探遍每一个角落。
4·Basic organic (life) chemicals such as amino acids have been detected in nebulae and meteorites (see meteors).
构成生命组织的基本化学物如氨基酸，在星云和陨石中也被发现。
5·Brightclusters and nebulae abound in the northern constellation of Auriga.
御夫座北部有大量明亮的星团和星云。