Scientists warn that repeated cataclysms could reshape the planet's climate and ecosystem for millennia.

The ancient dam failed cataclysmically, unleashing a flood that swept through the valley.

The scientists warned that the asteroid impact would have cataclysmical consequences for life on Earth.

Scientists warned that the sudden shifts in the atmosphere could trigger a global cataclysm.

The scientist warned that the comet impact could trigger a cataclysmic shift in Earth's climate.

The scientists warned that a cataclysmal release of energy would reshape the planet's climate for centuries.

Geologists study the evidence left by the lunar cataclysm to understand how the early Solar System evolved.