Scientists are using this 3D Cielo supercmputer simulation to address ways to prevent objects in space from colliding with Earth.

This still image shows a one-megaton nuclear energy source exploding on the surface of the Itokawa asteroid.

Video explanation:  <a href=www.youtube.com/watch?v=hOcNbAV6SiI&list=UUbWmiA_pHk9... "/>

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