Science
What happens when two planets crash together? This supercomputer has the answer – Digital Trends
Astrophysicists obviously can’t create two planets and crash them together in the real world, so they’ve figured out a way to do it virtually,

NASA/JPL-Caltech
Obviously, we have no idea what really happens when planets collide, because we can’t build planets in the lab and smash them together, said Jacob Kegerreis, a postdoctoral researcher in a specialist lab at the U.K.s Durham University called the Institute for Computational Cosmology.
So Kegerreis and his colleagues did the next best thing: They booked time on a supercomputer and used it to run hundreds of simulations of planets crashing into one another — a demolition derby fo…
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