The galaxy is small, faint, and dominated by invisible dark matter.

他们推断这是个很小且很微弱的星系，而且主要是由不可见的暗物质组成。

Dark matter, a better name for dark matter is invisible matter.

暗物质，暗物质的一个更好的名字是隐形物质。

Rubin showed that every galaxy is surrounded by a huge halo of invisible dark matter.

鲁宾指出，每个星系都被一个巨大的、看不见的暗物质光环所包围。

Plus, most of the galaxy's heft is in invisible dark matter, which betrays its presence only through its gravitational pull.

而且占了银河系大部分重量的是无形的暗物质，人们之所以能发现暗物质是因为它的引力暴露了身份。

And when we come back, we are going to get a new understanding of invisible matter all around us.

当我们回来时，我们将对我们周围的无形物质有新的认识。

Rubin showed that every galaxy is surrounded by a huge halo of invisible dark matter. 50 years later, we still don't know what it is.

鲁宾表明，每个星系都被巨大的看不见的暗物质光环所包围。 50 年后，我们仍然不知道它是什么。