New research shows young planets are flat and “very similar to smarties”. Research knows far more than 5,000 planets - eight in our solar system, many thousands outside.
So far, no Smarties-shaped planets have been observed; all known exoplanets are round - just like the eight planets in ourSolar system. If oblate young planets were one day discovered, it would suggest that the theory of disk stability may be in line with reality. However, the theory is currently preferred by researchers.