Eclipsing Cepheid Falsifies Stellar Evolution Theory

Eclipsing Cepheid Falsifies Stellar Evolution Theory: "An ESO (European Southern Observatory) press release boasts, “Pulsating Star Mystery Solved.” Cepheid variables are stars whose rates of pulsation vary with their luminosities: the brighter the star the longer it takes to complete a cycle of variability. It’s called the period–luminosity relationship.

By timing the period of pulsation, the absolute luminosity of the star can be calculated. By comparing that quantity with the star’s apparent brightness, the star’s distance can be determined. Edwin Hubble’s discovery of Cepheids in the Andromeda galaxy in 1924 was the key to proving that the “spiral nebulae,” formerly thought to lie inside the Milky Way, were actually independent galaxies far outside the Milky Way."