More geological changes are occurring at Yellowstone National Park, as another hole forms in one of the park's basins.

ATF investigates Northern California fireworks explosion; 7 warehouse workers still missing Smoke and flames rise from a fireworks warehouse explosion near Esparto, Calif., on Tuesday.

Search continues for 7 missing after huge explosion at California fireworks warehouse The warehouse was managed by Devastating Pyrotechnics, which designs and produces fireworks shows in the Bay Area.