NASA is revising its soil-harvesting method because the Phoenix Mars lander is having trouble with its icy finds, Space.com reports. The lander’s attempts to analyze the soil have been troubled because the soil is sticking to its scoop, stubbornly refusing to fall into the tiny oven designed to melt and study it. Next time, the scoop will dig less and vibrate more. NASA is studying the soil to see whether it could have ever supported life. (More Mars stories.)