00:00A terrifying cosmic desert sits hidden in the deep night sky.
00:04This immense cosmic sphere spans roughly 330 million light-years across.
00:10Astronomers using the Kitt Peak National Observatory found nearly zero galaxies inside it.
00:16By standard cosmic math, this vast volume should hold thousands of massive star systems.
00:23Gravitational repulsion from surrounding walls accelerated the expansion,
00:28rapidly purging galaxies from this immense volume.
