N-body simulations show that 50 to 90 percent of wide planet-planet binaries in dense star-forming regions are destroyed within a few million years, so many more than the observed 42 JuMBOs must have formed.
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Can planet-planet binaries survive in star-forming regions?
N-body simulations show that 50 to 90 percent of wide planet-planet binaries in dense star-forming regions are destroyed within a few million years, so many more than the observed 42 JuMBOs must have formed.