To help, Centre national de la recherche scientifique in France developed a coronagraph attachment for the JWST’s MIRI instrument which can reproduce the effect observed during an eclipse. Such masking makes objects around a star easier to observe.

With infinite stars it's necessary to find targets of opportunity so astronomers focus on younger stars where the planets are still hot and the system discs can be viewed by us 'from above' - pole on.

TWA 7 has three distinct rings, one very narrow and surrounded by two empty areas with almost no matter. JWST was able to find a source within the heart of this narrow ring - an exoplanet.

The new planet is comparable in size to Saturn, but that is 10 times lighter than those captured in previous images, and has been named TWA 7 b.