Humanity Extinction by Asteroid Impact

  title={Humanity Extinction by Asteroid Impact},
  author={Jean-Marc Salotti},
1 Citations

Island refuges for surviving nuclear winter and other abrupt sunlight-reducing catastrophes.

  • M. BoydN. Wilson
  • Geology
    Risk analysis : an official publication of the Society for Risk Analysis
  • 2022
Some island nations in the Southern Hemisphere might survive a severe sun-reducing catastrophe such as nuclear winter and be well placed to help reboot-collapsed human civilization. Such islands must



Early Activity in Comet C/2014 UN271 Bernardinelli–Bernstein as Observed by TESS

We used long duration observations from the Transient Exoplanet Survey Satellite (TESS) to investigate the behavior of comet C/2014 UN271 Bernardinelli–Bernstein at large heliocentric distances. By

Breakup of a long-period comet as the origin of the dinosaur extinction

This hypothesis explains the composition of the largest confirmed impact crater in Earth’s history as well as the largest one within the last million years, and predicts a larger proportion of impactors with carbonaceous chondritic compositions than would be expected from meteorite falls of main-belt asteroids.

Minimum Number of Settlers for Survival on Another Planet

It is shown here that a mathematical model can be used to determine the minimum number of settlers and the way of life for survival on another planet, using Mars as the example, and if this relatively low number is confirmed, survival on other planet might be easier than expected, provided that the organization of the settlers is appropriate.

Planetary Defense

  • Physics
    Space and Society
  • 2019

Distant futures and the environment