A moon heist, lava fountains, and predicting doomsday

Robin George Andrews discusses Japan’s planned sampling mission to Phobos and what returned material could reveal about the moon and Mars. Ashton Flinders explains how camera observations, geochemistry and geophysical monitoring revealed patterns in Kīlauea’s lava fountains. Economist Javier Birchenall examines a historical prediction of runaway population growth and the broader difficulty of forecasting major crises.