New research from scientists at the University of Rochester reveals that the Fomalhaut star system contains a third star, Fomalhaut C. The nearby star system Fomalhaut – of special interest for its unusual exoplanet and dusty debris disk – has been discovered to be not just a double star, as astronomers had thought, but one of the widest triple stars known.
Finding Exoplanets: Direct Imaging This one is pretty self-explanatory. Powerful telescopes get actual images of distant worlds, using instruments called coronagraphs to block out the overwhelming glare of their parent stars.
The Fomalhaut system contains a cleared ring (shining brightly in this image) in the dust around the star. Scientists suspect that this gap was cleared by a pair of terrestrial planets, but new research reveals that the presence of gas could also create such a breach.