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

它是一大块铁，还是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，在拍摄可见光和近红外范围内高光谱图像中，他们发现了在背面碳质粒陨石残留物。

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

龙宫是一颗碳质小行星，这意味着它有机物质。

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

这些岩石是碳质粒陨石，属于最稀有陨石类型之一，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，彗星内部大部分冰并未直接暴露于表面；其表面大多覆盖着一层比沥青还黑复杂碳尘埃。

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，地上水最可能来源是一种名为碳质粒陨石陨石。

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

一种被称为“碳质粒陨石” 小行星有水分子，以及其原始成分氧和氢。