Data from the Spitzer telescope show that the planet does not dissipate much heat and that its orbit will take an astounding 10 billion years or more to become circular. "The long time scales we are observing here suggest that a leading migration mechanism may not be as efficient for hot-Jupiter formation as once believed," Greg Laughlin, an astronomer at the University of California, Santa Cruz, and a co-author of the study, said in the same statement. Instead, data from the Spitzer telescope suggest that some competing theories may be responsible for hot Jupiters.
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