Blue Core is one of the two cores that appeared in Astro boy (2009 movie). The Blue Core contains stable and positive energy that potentially able to restore Earth environment in surface aside being designed as an infinite power source that both more powerful and cleaner than nuclear energy. Due to it's nature for containing positive energy, The Peacekeeper would become a peaceful robot if it had the Blue Core loaded into its body (a fact that indirectly confirmed when it loaded on Astro's body instead that made him a peaceful individual). It is what powers Astro in the 2009 film.
Creation and Origin
Blue Core, along with the Red Core, are created from the fragment of a star that located million years away from planet Earth that no longer exists in the present. It’s not mentioned how the cores’ material acquired, either gained through expedition to the outer space or the material itself fell on Earth as a meteor before the scientist examined it and discovered it’s nature as star fragment. Either way, the energy that gained from the star fragment has properly harnessed and encased within spherical cores.
During the extraction process, it’s revealed that the energy within the star fragment consists of bluish white positive energy and the reddish jet-black negative energy. Both energies are cancelling each other due to it’s opposing properties: blue energy is more stable and safe than it’s red counterpart that was unstable and dangerous. This was discovered when the positive energy extracted completely from the star fragment, left the fragment nothing but highly unstable and corruptive red energy. So, they decided to have them inserted into separate cores that must be separated at all costs.
Effect and Potential
As seen from Dr. Elefun's presentation, the Blue Core potentially able to revive the already collapsed ecosysten on earth. Though it's exact potential was unknown, it's also revealed that the Blue Core Energy can revives and restore any machines aside powered them up: this method was done by Astro when he revived Zog, a huge robot that has been deactivated for years. The Blue Core energy also the only thing that can stop anything that empowered by it's corruptive counterpart Red Core due to it's opposing properties.