Virgin Galactic had, prior to this week's accident, seemed closest to starting regular flights.
在本周事故发生前，维珍银河公司似乎离开始定期飞行仅有咫尺之遥。
On the flip side, companies like Virgin Galactic are plotting a bottom-up assault on the space dream by making it a reality to the public.
另一方面，维珍银河等公司正在策划对太空梦发动一场自下而上的袭击，让普通大众也能够实现自己的太空邀游梦想。
In an interview last year with The Economist, George Whitesides, chief executive of space-tourism firm Virgin Galactic, was placing his company in the latter category.
在去年接受《经济学人》采访时，太空旅游公司维珍银河的首席执行官乔治·怀特赛兹将他的公司归为后一类。
How Virgin Galactic, regulators and the public respond to this most recent tragedy will determine whether and how soon private space travel can transcend that playground.
维珍银河公司、监管机构和公众如何应对这起最近发生的悲剧，将决定私人太空旅行能否以及多久能超越这块天地。
However, the amount of helium in the universe, as measured by spectroscopy, suggests that there are far more baryons in the universe than estimates based on galactic luminosity indicate.
然而，通过光谱学测量，宇宙中氦的数量表明，宇宙中重子的数量要比基于星系光度所估计的要多得多。
It's a pleasure to meet you, the first-known trans-galactic visitor to Earth.
很高兴见到你，第一个已知的穿越银河系来到地球的旅行者。
Do we live in a "galactic ecosystem"?
我们生活的银河系是个大的生态系统吗？
HOW DOES IT AFFECT THE GALACTIC ENVIRONMENT?
它如何影响银河系环境？
MERGERS: How Galactic Collisions Fed Black holes.
合并：星系间的撞击是如何哺育黑洞的？
Earth lies further out, nearer the galactic 'rim'.
其实地球远离这个中心，甚至都到了银河的边缘了。
Galactic Governance - What is the Andromeda Council?
仙女座议会是什么？
Type III civilizations command energy on a galactic scale.
阶段三，文明能控制一个银河系范围的能量。
We have been located in a backwater part of the galactic rim.
我们位于银河系边缘的偏远山区。
Such mergers can generate a quasar phase of galactic evolution.
这些合并会在星系进化的过程中促成类星体阶段的到来。
Then they tested the whole shebang for signs of galactic mergers.
接着他们测试了整个过程，寻找星系合并的迹象。
Was in contact two galactic rotations ago, wants to be friendly again.
他们曾与我们在两个银河循环之前接触过，现在他们想再次与我们交好了。
The ring may have been formed when two galactic clusters collided.
这个‘指环’可能是在两个星团发生碰撞时形成的。
These research flights mark an important milestone for Virgin Galactic.
这些研究飞行对于维珍银河是一个里程碑。
To get this far the Virgin Galactic project has faced many difficulties.
达到现在的成就，维珍银河项目面临了很多困难。
Will the result of these galactic collisions be one big elliptical galaxy?
星系的撞击将会使它们合成一个大的椭圆型星系吗？
The first planet of extra-galactic origin in the Milky Way has been found.
第一颗起源于外星系的行星在银河系中被发现。
'it flew beautifully,' said Virgin Galactic chief executive George Whitesides.
“它飞行的姿态实在太漂亮了，”维珍银河公司首席执行官乔治·怀特·赛德斯如是说。
In some simulations, the stars spread along a full orbit around the galactic center.
在一些模拟场景中，恒星们会沿着一个完整的轨道围绕银河系中心运转。
Galactic mergers take millions of years, so they can't readily be observed in progress.
星系的合并花了好几百万年，所以它们不容易在这个过程中被观察到。
So how can NASA deliver the same high-quality galactic images and information for less?
那么NASA怎样才能多快好省地提供高清星系图片？
Without galactic assistance, I know of no other way to address the radioactive fallout problem.
没有银河人的援助，我知道没有其他办法解决放射性尘埃问题。
Virgin Galactic has since accumulated a number of commercial rivals in the space-tourism market.
银河维京的这一举动对他们在空间旅游市场上的竞争者们也开始有所动作。
The Moon will also be just 3 degrees from the Galactic Center, that is, almost in conjunction.
月球将只离银河中心差3度，这表示，差不多与银河中心完全协调。
The Sloan Great Wall, a vast galactic filament, is the largest known structure in the Universe.
“斯隆长城”是一条巨大的丝状体，是目前宇宙中已知的最大的结构。
Constellations near the Galactic Center include Sagittarius, Libra, Scorpius, Scutum, and Ophiuchus.
银心附近的星座包括人马座、天秤座、天蝎座、盾牌座和蛇夫座。
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