Speed and size. But as speed generally is high (11-72 km/s) [1] then size matters more. Anything hitting you at km/s that survives the journey through the atmos

Speed and size. But as speed generally is high (11-72 km/s) [1] then size matters more. Anything hitting you at km/s that survives the journey through the atmosphere is going to hurt I think. :) https://www.amsmeteors.org/meteor-showers/meteor-faq/#3 https://www.amsmeteors.org/meteor-showers/meteor-faq/#3