New research suggests that Uranus and Neptune may not be as unusual as previously thought, with some studies indicating they may not be "ice giants" after all. The planets' compositions and magnetic fields are being reevaluated, with some findings implying that they may be hiding new states of matter or other surprises beneath their surfaces. The reexamination of these planets is based on new models and a reevaluation of data from the Voyager 2 spacecraft, which flew by Uranus and Neptune in the 1980s.