航天飞机第二次飞行时携带的成象雷达,不仅按计划拍摄了地球表面的图象,而且还提供了揭示地下特征的图象,揭开了埋藏在撒哈拉沙漠地下古代地形的秘密。这种地下资料对于考古学研究,以及探测沙漠底下的石油和水源具有广泛意义。当然,在美国地质部,喷气推进实验室和埃及地质队的研究人员于9月份到达撒哈拉沙漠进行实地考察之前,雷达能穿透沙层的准确深度尚不清楚。研究人员认为,雷达可能还对其他极干旱的地区进行了穿透成 The imaging radar carried on the second flight of the space shuttle captured images of the surface of the Earth not only as planned, but also provided images revealing the underground features and revealed the secrets of the ancient terrain buried in the sub-Saharan ground. This underground information has broad implications for archaeological research and exploration of the oil and water beneath the desert. Of course, it is not clear exactly how far the radar will penetrate the sand until researchers in the United States Department of Geology, Jet Propulsion Laboratory and the Egyptian Geological Team reach the Sahara for a field visit in September. Researchers believe the radar could also penetrate other extremely arid regions