Elon Musk revealed SpaceX is now prioritizing building a Moon city over Mars colonization, saying the lunar base can be achieved in 10 years versus 20+ for Mars

Editor's note: All opinions, columns and letters reflect the views of the individual writer and not necessarily those of the IDS or its staffers. Rovers on Mars have made exciting finds and sensational headlines since bellbottom jeans were fashionable.

When Philip K. Dick imagined artificial beings in his book "Do Androids Dream of Electric Sheep," the question was whether machines could think and feel like humans. Today, NASA is posing a related, but more practical question: Could superhuman AI-powered ...