This volume is a compilation of the research presented at the International Asteroid Day
workshop which was celebrated at Barcelona on June 30th 2015. The proceedings discuss the
beginning of a new era in the study and exploration of the solar system's minor bodies.
International Asteroid Day commemorates the Tunguska event of June 30th 1908. The workshop's
goal was to promote the importance of dealing proactively with impact hazards from space.
Multidisciplinary experts contributed to this discussion by describing the nature of comets and
asteroids along with their offspring meteoroids. New missions to return material samples of
asteroids back to Earth such as Osiris-REx and Hayabusa 2 as well as projects like AIM and
DART which will test impact deflection techniques for Potentially Hazardous Asteroids
encounters were also covered. The proceedings include both an outreach level to popularize
impact hazards and a scientific character which covers the latest knowledge on these topics as
well as offering proposals of promising new techniques that will help gain new insights of the
properties of these challenging bodies by studying meteoroids and meteorites. Asteroids comets
meteoroids and meteorites are introduced with descriptions of their nature origin and solar
system pathways.
