The cosmic clock is ticking toward our next potential mass extinction
In short: Sixty-six million years ago, a single asteroid strike erased 75% of life on Earth. This documentary explores the science of planetary defense and how we are preparing for the inevitable next impact.
The Chicxulub crater serves as a permanent scar from an event that triggered the fifth mass extinction, wiping out the dinosaurs. While smaller collisions occur regularly with only localized damage, scientists confirm that another large-scale impact is a matter of timing rather than possibility. To mitigate this risk, space agencies now monitor over 25,000 near-Earth objects. Particular focus is placed on bodies larger than 140 meters due to their potential to cause global fires, tsunamis, and climate disruption. The documentary highlights human ingenuity through missions like DART, which successfully tested the ability to alter an asteroid's trajectory.
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Sources
- Summary by Intellect · source: The Next Asteroid Impact: Could Earth Survive Another Mass Extinction? - Full Nature Documentary
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