Thanks to underwater robots, researchers discovered more than 5,000 craters on the seafloor off the coast of California that were not caused by leaking methane gas.
Residents on the Taimyr, Siberia peninsula saw the sky glowing after a booming explosion near 100km, leading to the birth of a mysteriously expanding mysterious crater.
It seems that a giant crater discovered deep in Siberia is not the only strange phenomenon formed here.
A new large crater was discovered in Siberia, Russia, in the area called