He didn't seem to notice my presence and began a series of astronomical observations.

好像他没有看见我在乎台上，开始做他的一连串天文观察。

Previous astronomical observations have hypothesized that there was a " baby boom" of stars about seven billion years ago.

此前的天文学观测曾假定，约70亿年前存在过恒星的“婴儿潮”。

In fact, given that a lot of astronomical observations are done at night, you may want to bundle up.

事实上，考虑到很多天文观测都是在晚上进行的，你可能会想要穿得暖和一点。

Today you learned that the timeline of the Universe's history can be mapped using modern day physics and astronomical observations.

今天你学到了宇宙历史的时间线可以用现代物理和天文观测来绘制。

The first astronomical observations were—and this is what was really, really trippy, though.

第一次天文观测是——不过，这确实是非常非常令人迷幻的。

It was Isaac Newton who described comets as solid bodies with thin tails of vapor heated by the sun, a description supported by modern astronomical observations.

牛顿将彗星描述为带着蒸汽细尾巴的固体，这个描述得到了现代天文在太阳附近观测结果的支持。

In the 1960s, however, interest in the large-scale problems of astronomy and cosmology was revived by a great increase in the number and range of astronomical observations brought about by the application of modern technology.

然而，在 20 世纪 60 年代，由于现代技术的应用带来的天文观测数量和范围的大幅增加，人们对天文学和宇宙学的大规模问题重新产生了兴趣。