An alien landscape? One of the landmarks when Earth is seen from space is the thirty-mile-wide Richat Structure, or Eye of the Sahara, found in Mauritania (Figure I.1). Some thought the Richat ...

This scene imagines the mysterious beauty of alien worlds beyond our solar system. The landscape features unusual plant life, towering organic structures, and glowing vegetation surrounding calm water ...

You do not need lava fields to find a truly otherworldly American landscape. Some of the strangest scenery in the country comes from gypsum, salt, sandstone, wind, ancient lakes, and millions of years ...

Imagine peeling back miles of frozen white and revealing valleys, rivers, and mountains that haven't seen sunlight in tens of millions of years. Long before Antarctica froze over, rivers carved ...