By astronomical standards, that is a hair's breadth.

以天标准来看，这只是毫厘之差。

The astronomer gazed at the luminous star.

天凝视着那颗发光的星星。

The astronomer in charge had a novel idea.

主管的天有一个新奇的想法。

Some blame for the current controversy belongs to astronomers.

一些人把如今的争议归因于天。

Astronomers think that Orion spur's where your system appears.

天们认为太阳系位于猎户星座旋臂上。

Who was NASA's first chief of astronomy?

谁是美国宇航局的第一任首席天？

The findings appear in the journals Nature and Nature Astronomy.

这一研究结果发表在《自然》和《自然·天》期刊上。

Astronomers are encouraging everyone to use certified eclipse glasses or handheld solar viewers.

天建议大使用经认证合格的镜或手持太阳观测仪来观察。

Astronomers think it's a failed dwarf galaxy that lacked the requisite mass to produce stars.

天们认为它是缺乏必要存在物而不能产生新星的已经衰败的矮星星系。

My father had an interest in astronomy.

我的父亲对天很感兴趣。

It was spotted with the James Webb Space Telescope and astronomers and researchers say that this galaxy existed when the universe was only about 700 million years into its current age of about 13.8 billion years.

它是由詹姆斯·韦伯太空望远镜发现的，天和研究人员说，这个星系在宇宙形成只有7亿年的时候就存在了，而现在宇宙的年龄大约是138亿年。

The same curiosity to find what lies beyond the horizon that first brought early Polynesians to Hawaii's shores inspires astronomers today to explore the heavens.

起初，探索地平线外的世界的好奇心将波利尼西亚人带到了夏威夷海岸，如今同样的好奇心也在吸引着天不断探索天空。

Astronomy was the most important discipline, but astrology was respectable too, and it shaded into magic.

天是最重要的科，但占星术也同样受人推崇，它渐渐演变成了魔法。

That's always been the story of astronomy.

这一直是天的课题。

Laplace, the astronomer, was still at work when death caught up with him at 78.

法国天拉普拉斯78岁死时还在工作着。

I took a course in astronomy at college.

我在大里选了一门天的课程。

The goal, astronomers say is to nudge the moonlet.

天的目标是撞开这个小卫星。

All that changed in 1608 when an Italian astronomer made a primitive telescope.

但这一切在1608年改变了，一名意大利天制作了一具原始望远镜。

They were first used by astronomers hundreds of years B.C. and sailors used them in the Middle Ages until astrolabes were replaced by sextants.

公元前数百年，天首次使用它们，水手们在中世纪使用它们，直到六分仪取代了星盘。

And it's now proving valuable for helping astronomers and other scientists understand more about the evolution of stars, black holes, and the structure of the Milky Way.

如今，它在帮助天和其他科深入了解恒星、黑洞，以及银河系的演变过程方面有重要价值。