An international project, led by Spain’s National Research Council, (CSIC) provides information on the effects a projectile impact would have on an asteroid. The aim of the project is to work out how an asteroid might be deflected so as not to collide with the Earth. The research, published in The Astrophysical Journal, focuses on the study of the asteroid Chelyabinsk, which exploded over Russian skies in 2013 after passing through the atmosphere.