An ancient exoplanet dated at 12.7 billion years old could have formed over a long period in a giant disk of gas, according to new JWST observations.

Hubble's 'impossible' planet explained? Gas giants may have formed fast in early universe

Source: space
Source Link: https://www.space.com/the-universe/exoplanets/hubbles-impossible-planet-explained-gas-giants-may-have-formed-fast-in-early-universe