Mars may face more than twice as many close encounters with potentially dangerous asteroids as Earth does, according to a new study. This could imperil exploratory missions to the Red Planet, but also provide insight into how the inner solar system formed.
Asteroids constitute the biggest threat from space to our planet — the 2013 Chelyabinsk meteor, for example, generated shock waves that injured over 1,000 people and caused more than $33 million in damage to infrastructure.
