介绍:
9.27 侃 跟读原文
Well, water. Many scientists consider it a crucial element in the search for life forms on other planets. For decades, scientists have studied Mars to see if it had or has the necessary building block for life. Now, some stunning new images, well, they could hold crucial clues. Scientists are intrigued by the discovery of tens of thousands of gullies. Could they have been caused by flowing water? It could be acidic water. It could be briny water. It could be water carrying all kinds of sediment. It could be slushy. But, H2O is involved.
大家还在听
