Humanity extinction by #asteroid ☄️ impact
• Probabilistic risk assessment of giant #impacts 💥
• Risk from #NEAs
• Risks from observations
• Warning time
• Risks from long period comets (#LPC)
• Risk of complete extinction
• Risk reduction
• Effects of giant asteroid impact
• Survival on another #planet
• Survival in shelters on #Earth
• Cause of extinction
• Conclusion https://www.sciencedirect.com/science/article/pii/S0016328722000337
#NASA 📆 2014 Every #day, Earth is bombarded with more than 100 tons of dust and sand-sized particles.
About once a year, an automobile-sized 🚗 #asteroid ☄️ hits Earth's atmosphere, creates an impressive fireball, and burns up before reaching the surface.
If a rocky #meteoroid larger than 25 meters but smaller than one kilometer were to hit #Earth 🌍, it would likely cause local #damage 💥 to the #impact area.
⏱️ Time of discovery 🔭 of #asteroids ☄️ which passed within 1 #lunar distance from #Earth in 📆 2023
After closest approach 37.90%
< 24 hours before 20.70%
up to 7 days before 34.50%
> one week before 6.90%
> 7 weeks before 0.00%
> one year before 0.00%
#Tunguska event* compared with #LosAngeles, #California. Prepared for #NASA by Stephen Paul Meszaros. https://commons.wikimedia.org/wiki/File:Tunguska_and_Los_Angeles_(4093217182).jpg
After closest approach: 51.5%
< 24 hours before: 10.6%
up to 7 days before: 34.8%
> one week before: 3.0%
> 7 weeks before: 0.0%
> one year before: 0.0%