Around the Solar System的意思|示意

Of course, we now know that the planets, including Earth, revolve around the Sun, and that the solar system is only a tiny part of the universe.

当然，我们现在知道，包括地球在内的行星都围绕太阳公转，而太阳系只是宇宙的一小部分。

This notion has been used to successfully explain phenomena in our solar system, such as the slight alterations in Mercury's orbit around the sun, which Newton's gravity couldn't account for.

这个观点成功的解释了我们太阳系中的现象，例如，水星绕太阳轨道的微小变动。这是牛顿的引力定律所无法解释的。

Like our solar system, the planets around Gliese 581 have nearly-circular orbits.

Gliese 581周围的行星拥有同太阳系的行星一样类圆形轨道。

Our solar system is about 4.5 billion years old, but the galaxy is much older; there were stars and planets around long before Earth even existed.

我们所在的太阳系已经存在了约45亿年，但银河系的历史要早得多；早在地球形成之前，银河系就已经存在了恒星和行星。

In the 16th century, Copernicus put forth his controversial concept of a heliocentric solar system, in which the planets revolved around the sun — not the Earth.

16世纪，哥白尼提出了颇具争议的日心说，认为行星围绕太阳运转而非地球。

The Messenger began its trip through the inner solar system six and a half years ago, and it entered orbit around Mercury on March 18.

“信使”号探测器在六年半前开始了它的太阳系之旅，直到今年三月十八日才进入水星轨道。