Learn languages naturally with fresh, real content!

Popular Topics
Explore By Region
Scientists at Georgia State University's CHARA Array found large bright and dark spots on Polaris, a larger-than-expected Cepheid variable star.
Scientists at Georgia State University's CHARA Array captured high-resolution images of the North Star, Polaris, revealing large bright and dark spots that change over time.
Polaris, a Cepheid variable star, has a heavier mass than previously estimated, and its size is 46 times larger than the Sun, with a diameter of 46 solar diameters.
The CHARA Array's observations provide the first glimpse of a Cepheid variable's surface.
424 Articles
Los científicos del CHARA Array de la Universidad Estatal de Georgia encontraron grandes manchas brillantes y oscuras en Polaris, una estrella variable cefeida más grande de lo esperado.