Is it a big hunk of iron, or is it mostly crumbly carbonaceous s tuff?

它大块铁，还主要由易碎碳质物质构成？

They said that they had found remnants of carbonaceous chondrites on the moon's far side in hyperspectral images in the visible and near-infrared range taken by the rover.

他们说，在月球车拍摄可见光和近红外高光谱图像中，他们发现了在月球背面碳质球粒陨石残留物。

Ryugu is a carbonaceous asteroid, which means that it is rich in organic material.

龙宫碳质小行星，这意味着它富含有机物质。

The rocks are carbonaceous chondrites, one of the rarest types of meteorites, rich in carbon.

这些岩石碳质球粒陨石，属于最稀有陨石类型之，富含碳元素。

But actually, not a lot of the ice in  a comet is exposed to the surface directly; most of the comet is coated in this layer of  complex carbonaceous dust, which is darker than asphalt.

事实上，彗星部大部分冰并未直接暴露于表面；其表面大多覆盖着层比沥青还黑复杂含碳尘埃。

It turns out that the most likely source for Earth's water is a type of meteorite called a carbonaceous chondrite.

事实证明，地球上水最可能来源种名为碳质球粒陨石陨石。

One type of asteroid called a 'carbonaceous chondrite' contains water molecules, and also their raw ingredients, oxygen and hydrogen.

种被称为“碳质球粒陨石” 小行星含有水分子，以及其原始成分氧和氢。