From the primordial cloud of gas and cosmic dust, gravity forged the stars.

它化卑微为神奇，用原始星云和星际尘埃制造了璀璨的星河。

These are grains of cosmic dust, which existed prior to our solar system forming.

这些都是早于我们太阳系形成的宇宙尘埃颗粒。

Cosmic dust is not quite the same as dust we know from the apartment here.

宇宙尘埃和我们在这间公寓里看到的尘埃并不完全一样。

He points out that cosmic dust isn't exactly the kind of dust you or I might be familiar with.

他指出宇宙尘埃并不是你我所熟悉的那种尘埃。

If you've ever looked up at the Milky Way, you've seen what's known as cosmic dust.

如果你曾经仰望过银河系，你就会看到所谓的宇宙尘埃。

NASA has other samples still of very old cosmic dust.

- 美国宇航局还有其他非常古老的宇宙尘埃样本。

Every year, tens of thousands of tons of cosmic dust lands on Earth and mingles with terrestrial minerals.

每年， 数万吨宇宙尘埃降落在地球上，并与地球上的矿物混合在一起。

Cosmic dust is really just very small particles in the universe that are consisting of just a few molecules, often containing carbon or silicate.

宇宙尘埃实际上是宇宙中非常小的粒子，仅由几个微粒组成，通常含有碳或硅酸盐。

Indeed, in addition to mass loss, the earth also acquires additional mass from space approximately 40,000 tonnes of cosmic dust settles on the Earth's surface throughout the year.

事实上，除了质量损失外，地球还从太空获得额外质量，全年约有四万吨宇宙尘埃沉降在地球表面。

And-as in that Milky Way example-that cosmic dust absorbs the light of stars behind it, making it harder for us to see those stars with instruments like the Hubble Space Telescope.

而且，就和银河系的例子一样，宇宙尘埃吸收了它背后恒星的光，使我们很难用哈勃空间望远镜等仪器看到这些恒星。