Topic: Phobos

Benjamin Thompson and Elizabeth Gibney discuss an experiment trapping a single positron and how precise measurements could probe differences between matter and antimatter. The episode then turns to JAXA’s mission to Phobos, including the challenge of operating a wheeled rover under extremely low gravity. These conversations connect laboratory tests of fundamental physics with the engineering and scientific aims of planetary exploration.

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.