Some newly discovered periodic orbits of Newton's 3-body problem are unstable

(Science China Press) Isaac Newton's three-body problem, which examines how three bodies affected by gravitation will orbit around each other, is well known in nonlinear dynamics and applied mathematics. In 2013, Belgrade-based physicists Milovan Šuvakov and Veljko Dmitrašinović discovered 13 new families of periodic orbits, and stated their solutions were 'either stable or marginally unstable.' But Chinese scientists reviewing these findings found at least 7 of these families are unstable, a...