However, the gas giant planet in the Hubble image evidently took no more than 300,000 years to form. The only way to make a gas giant planet that quickly, Boss says, is to form it directly out of the rotating disk of dust and gas. Such giant planets would then form in a manner similar to the more massive brown dwarfs, which form out of gas and dust, but at an earlier phase. Hubble's gas giant is roughly the same age as the parent stars, about 300,000 years old. Gas giant planets are many hundreds of times heavier than Earth.
Earth is small and rocky and is called a terrestrial planet.
Because of their larger sizes, gas giants are the only planets that have been discovered so far. A Gas Giant Boss is an advocate for the fast-track method of making gas giants, at least in some cases. If this is a planet and the system is about 300,000 years old, then the slower, conventional theory doesn't fit. It's like Cinderella dropping her glass slipper after the ball. That slipper is only going to fit one person.