The survival and raging heat of KELT-9b are probably the result of its strange chemical makeup along with a hypothetically turbulent formation that involved collisions with other objects as it moved toward the fireball it orbits.
“KELT-9b is particularly interesting because it's unexpectedly close to its star and has a very inclined orbit,” said Quentin Changeat, who co-authored a study recently published in
The Astrophysical Journal Letters. “It suggests some major event happened in the past, so it is a very good candidate to look for these unexpected chemistries.”
Obviously, the only thing hot enough to have raised the body temperature of KELT-9b so high is its host star. Earth couldn’t possibly take the pressure that KELT-9b experiences. Its atmosphere is a lethal cauldron of H2, metal oxides and metal hydrides, which could never occur in our cosmic territory. How those molecules were even floating around in the atmospheres was a mystery, since so much heat is supposed to dismember them. The thing is that only one side of the planet is going through a perpetual hot flash.