Throughout Earth's history, life has been repeatedly decimated by catastrophic events that have wiped out vast percentages of species. From the devastating impact of asteroids to the lethal consequences of massive volcanic eruptions and the potential threat of cosmic radiation, these mass extinctions have reshaped the planet's biological landscape. Scientists are now piecing together the clues left behind in the fossil record and geological layers to understand these ancient disasters and assess the vulnerability of our own species to future extinction events.