In fact, there's a property of gravitational fields anywhere, even in outer space, but there is some residual field between all the planets and all the stars in the universe, that the force on a body is proportional to the mass of the body.

实际上,这是任何地方的引力场都具备的属性,甚至是在外太空,在所有的行星和恒星之间,存在着某种剩余场,在这个场里作用在物体上的力,和物体的质量之间存在比例关系

耶鲁公开课 - 基础物理课程节选

So you could use this in order to identify the contents of stars.

所以你可以用此,这来辨别星星的数量。

麻省理工公开课 - 固态化学导论课程节选

We've a harvest holiday called Sukkot, where we actually sit outside, in this open structures that have natural coverings, branches, often where you can see the stars as a reminder of the time when the Israelites wandering in the desert, after they were released from slavery in Egypt.

我们会过一个收获的节日，叫做结茅节，那时，我们坐在外面，在自然的开阔天地,树枝是我们的屋顶,满天星斗让我们想起,以色列人摆脱了埃及人的奴役，在沙漠中流浪的岁月。

普林斯顿公开课 - 人性课程节选