The Cepheid Project

The Cepheid Project is an astronomical research initiative focused on studying Cepheid variable stars—stars that periodically brighten and dim predictably. These stars serve as "standard candles" for measuring cosmic distances because their brightness fluctuations correlate well with their intrinsic luminosity. By observing Cepheids in nearby galaxies, scientists can determine accurate distances across the universe, which is crucial for understanding its size, age, and expansion rate. The project improves distance measurement techniques, helping us refine models of cosmology and better comprehend the universe's structure and evolution.