How would orbits near a wormhole differ from a black hole?

Damour-Solodukhin wormholes look almost like Schwarzschild black holes but have a tunable throat that can merge with orbital turning points, creating exotic degeneracies in particle trajectories. Working out exact analytical solutions, the authors find that near certain throat configurations, orbital times and angles diverge logarithmically or as power laws — a sharp contrast to smooth black-hole plunges. These analytic signatures could, in principle, distinguish wormholes from black holes through gravitational-wave inspiral signals.