It was a gut punch. The New York Times declared Mars a dead planet. “The fanciful Martian megafauna,” John Updike wrote many years later for this magazine, “were swept into oblivion.” ...

The same mechanism that gives Mars its cliffs and canyons could also give it subsurface life.

From derelict alien ships to cannonballs, NASA spotted lots of weird things on the Martian surface last year. It seems 2018 is going to continue the trend, and the Curiosity rover is starting the ...