Some evidence (how fast a particular star is orbiting) now suggests the supermassive black hole at the centre of our galaxy is in fact a wormhole. We are in the process of augmenting a particular Chilean telescope, facilitating analysis of plasma blur near the event horizon (the two still unproven theories - blackhole vs wormhole - 'smudge' the bent infrared light differently).

Distinguishing Black Holes And Wormholes With Orbiting Hot Spots