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Who Killed the Woolly Mammoth? | Explorer

113.5K views
•
October 1, 2007
by
National Geographic
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Who Killed the Woolly Mammoth? | Explorer

TL;DR

Scientists investigate the potential cosmic impact that caused the extinction of mammoths in North America.

Transcript

in an attempt to solve the 13,000 year-old mystery of the mammoth's Extinction in North America investigators trace the Fallout pattern of potential alien debris scattered across the continent they are trying to pin down the epicenter of what they suspect was an apocalyptic Cosmic impact from specs of extraterrestrial dust a frightening picture beg... Read More

Key Insights

  • 🦣 Investigators are attempting to solve the mystery of the mammoth's extinction in North America, tracing potential cosmic impacts.
  • ⌛ The energies involved in a cosmic impact could be a hundred times greater than a nuclear bomb.
  • 🥶 The lack of an impact crater may be due to the thick layer of ice that covered the impact zone.
  • 🥵 Experiments suggest that an air burst or an impact on the ice sheet could have caused the extinction, with the consequences being a devastating wave of heat and shrapnel.
  • 🥶 The ice sheet may have absorbed and hidden the evidence of the impact, erasing the immediate signs.
  • 😅 The vapor, dust, and hot gas released by the impact could have engulfed most of North America.
  • 🔬 Investigating cosmic impacts is crucial to understanding if such events could happen again and potentially affect humanity.

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Questions & Answers

Q: How do investigators trace the potential cosmic impact?

Investigators map the concentrations of extraterrestrial debris scattered across North America to locate the epicenter of the impact.

Q: What is the suspected impact zone?

The suspected impact zone is beneath the Laurentide ice sheet in the northeastern portion of North America.

Q: How do scientists simulate cosmic impacts?

NASA's hypervelocity impact lab shoots glass beads at high speeds to simulate comets or asteroids, helping researchers understand the physics of such impacts.

Q: What are the two possible scenarios for a life-altering impact without an obvious crater?

The first scenario is an air burst, where the cosmic body breaks up and explodes before impact, creating a shallow crater and numerous smaller impacts. The second scenario involves an impact on the ice sheet, with the ice acting as a shield against the energy and leaving minimal evidence.

Summary & Key Takeaways

  • Investigators track the fallout pattern of potential alien debris in North America to find the epicenter of a suspected apocalyptic cosmic impact.

  • The team maps the concentrations of extraterrestrial evidence, leading them to a potential impact zone beneath the Laurentide ice sheet in the northeastern portion of the continent.

  • NASA's hypervelocity impact lab experiments simulate the physics of cosmic impacts, suggesting that an air burst or an impact on the ice sheet could have caused the extinction of mammoths.


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