Hence it is considered that a galactic year can be based on to institute an ideal geologic time scale in which a galactic year is an era.

银河年是建立理想地质年代表的基础，每一个银河年就是一个代。

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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。

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Two 30,000 light-year-long blobs called Fermi bubbles have been discovered on either side of our galactic plane. John Matson reports

在银河盘面两端，发现了两个长达30,000光年的东东，它们被称作费米尔泡。

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But the truth is that it is the final frontier that Virgin Galactic is hoping to exploit and it could be as soon as next year.

FORBES: The John Galts of the Future Will Build Galt's Gulch in Space

Virgin Galactic is hopeful it will have a successful test launch of its space vehicle next year.

FORBES: The John Galts of the Future Will Build Galt's Gulch in Space

In typical outsize Branson fashion, the 61-year-old rappelled from the ceiling of the hangar now called the "Virgin Galactic Gateway to Space" and, while dangling in midair, chugged from a bottle of champagne in front of a large crowd to celebrate.

WSJ: The Weekend Interview with Richard Branson: Space��The Next Business Frontier