"Unprecedented Shift: Polaris, the Brightest Cepheid Variable, Undergoes Mysterious Transformation"

Polaris, the brightest star in the Ursa Minor constellation and a classic Cepheid variable, has recently shown unexpected changes in its pulsation period. For over a century, the period had been increasing, but it has now started getting shorter. Astronomer Guillermo Torres suggests that these changes may be due to the binary nature of the system, where the companion star perturbs the atmosphere of the primary star. This discovery could shed light on the behavior of other pulsating stars and improve our understanding of their oscillations.