NASA's most powerful rocket poised for launch on historic Artemis 1 moon mission

Five decades after the final flight of NASA's legendary Saturn 5 moon rocket, the U.S. space agency is poised to launch its most powerful rocket yet Monday for a critical, long-overdue test flight, sending an unpiloted Orion crew capsule on a 42-day voyage around the moon.

Running years behind schedule and billions over budget, the first Space Launch System — SLS — rocket is finally ready for blastoff from pad 39B at the Kennedy Space Center at 8:33 a.m. EDT Monday, the opening of a two-hour window. Forecasters are predicting a 70 percent chance...