星云的

Over time, only the densest regions of the Cone will be left. Inside these regions, stars and planets may form.

随着时间的流逝，锥状星云中最密集的区域会残留下来，也许会形成新的恒星和行星。

The object is actually a shell of gas and dust that has been blown off by a faint central star, lying around 700 light-year away in the constellation of Aquarius.

该星云实际上是一个衰亡中的恒星释放出的气体和灰尘，位于离地球约700光年的宝瓶座星系。

Star formation continues in the Lagoon Nebula as witnessed by the many globules that exist there.

在我们所看到的礁湖星云中，恒星的形成还在不断地进行着，并且有许多的雪球存在。

Explanation: The dark dusty Keyhole Nebula gets its name from its unusual shape.

黑暗而且多尘埃的钥匙洞星云，是因他的特殊形状而命名的。

Some of these stellar puffballs are almost round, resembling huge soap bubbles or giant planets, but others, such as NGC 5189 are more intricate.

这种星云有的像巨大的气泡或者圆形的巨行星，但像NGC 5189那样的则极为复杂。

Using existing observations, the researchers analyzed the polarized light emissions from 25 dense areas within several nebulas that are up to 6500 light-years from Earth.

研究人员利用现有的观测资料，对距地球6500光年以外的几团星云内部中25个高密度区域所释放的偏振光进行了分析。

Using data collected from previous sky surveys, the researchers analyzed the polarized light emissions from 25 dense areas within several molecular clouds, or nebulas, which are up to 6500 light-years from Earth.

使用从以前的天空调查所收集的数据，研究人员分析了来自25多个密集地区分子云内，或星云，这是高达6500光年的距离地球年偏振光排放。

This beautiful telescopic view combines a composite color image with narrow band data that isolates light from hydrogen and oxygen atoms in the wind-blown nebula.

这张美丽的望远镜影像是一张色彩合成的窄波段数据影像，分离了这个星云内氢和氧原子发出的光。

The China-Born, M.I.T. and Harvard educated astrophysicist laid the theoretical foundations for spiral structures in galaxies, density waves and star formation. These theories were later validated and became important cornerstones in astronomy.

这位中国出生，曾於麻省理工及哈佛接受教育的天体物理学家，致力建构有关银河、星云与星体盘旋结构的理论基础，这些理论后来也得到世界确认并成为天文研究的重要基石。

The Helix planetary nebula is constructed from matter ejected by a dying Sun-like star, almost 690 light-years away.

这种螺旋行星状星云是由一颗即将消逝的恒星所喷发出来的大量物质所有形成的，大概距离地球690光年。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷