... Star Atlas . ... stars . ... Stars donт??t obliterate their planets т?? very often . A new study shows that a hot Jupiter s planetary migration stops once the parent star s tidal forces complete the job of circularizing the exoplanet s orbit. ... Jupiter-like planets, called "hot Jupiters," are known to migrate from their star's frigid outer reaches in toward the star and its blistering heat. ... The study is the first to demonstrate how the hot Jupiter planets halt their inward march on stars. ...