火星表层土壤含有各种微粒,可能会提供有关这颗行星过去的线索美国国家航空航天局的“凤凰”号火星着陆探测器昨天将其携带的显微镜中的一台聚焦于着陆时被扬起的灰尘所覆盖的一个载物玻璃片,从而首次对该行星进行了真正的近距离观察。灰尘的图像传回到1.71亿英里外的地球,上面显示了大小不一、颜色各异的微粒,有的呈半透明白色,有的呈光亮透明的黑色。 Mars’ surface soil contains various particles that may provide clues about the past of the planet NASA’s Phoenix Mars landing probe yesterday focused one of its microscopes on landing to be lifted The dust covered a glass slide of a carrier glass so that the planet could be truly observed for the first time. The image of dust returns to Earth 171 million miles away. It shows particles of different sizes and colors, some of which are translucent white and some are bright and transparent black.