When a large meteor enters the earth's atmosphere, a rumble of very low-frequency sound waves is heard. Douglas Revelle and his team use these low rumbles to track and predict the arrival of large meteors.

In their work, the team uses Los Alamos' infrasonic arrays - a set of ears specially tuned to pick up low-frequency sound. Originally set up to monitor for clandestine nuclear tests; these arrays have now found extra use as meteor monitors.