How long did it take to make the moon? Maybe just 5 hours, new simulations suggest - Live Science

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.

A new supercomputer simulation traces how thousands of small galaxies eventually became the Milky Way.

Researchers are using extraordinarily detailed computer simulations to reconstruct one of the most transformative periods in cosmic history: the era when the first stars and galaxies began to emerge. The work is part of the MEGATRON project, led by researchers at the University of Bath in the UK with collaborators at the University of Chicago in the US and the Institut d'Astrophysique de Paris in France. The project is designed to explore how the earliest stars and galaxies illuminated a previously dark Universe and began producing and dispersing the chemical elements that later became essential ingredients of planets, life, and the world around us.