<< Throughout its 4.5-billion-year history, Earth has been repeatedly pummelled by space rocks that have caused anything from an innocuous splash in the ocean to species annihilation. >>
<< It may not happen in our lifetime (..) but "the risk that Earth will get hit in a devastating event one day is very high." >>
<< "We are not ready to defend ourselves" against an Earth-bound object (..) "We have no active planetary defence measures.". Rolf Densing.
Mariette Le Roux. Are asteroids humanity's 'greatest challenge'? June 28, 2017
Qui una poetica (quasistocastica) sul "ciottolo Apophis"