In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

Edwin Hubble ... taking images of spiral nebulae every clear night and looking for the telltale variations of Cepheid variables. By the end of 1924, he had found 12 Cepheids in M31.

Related: The star that changed the cosmos: M31-V1 Edwin Hubble had gathered the first proof that galaxies are distant, huge clouds of stars and gas and dust. Throughout the coming months ...

Before that, astronomers used to refer to the Andromeda galaxy, also known as Messier 31, M31, or NGC 224 ... American astronomer Edwin Hubble was the one who made the discovery, and it put ...

Android 10, up to Android 12, One UI 4.1 ...

January 2, 2025 • Bourbon Street re-opened in New Orleans Thursday afternoon, more than 24 hours after Wednesday morning's attack by a Texas man driving a Ford pickup truck plowed into a crowd ...

This Hubble image shows a bright, blue, newly formed star in the heart of a star-forming region in the Small Magellanic Cloud, one of the Milky Way's closest galactic neighbors, creating a cavity. NGC ...

The image captures HE0435-1223, one of the best lensed quasars, with four bright images formed by a foreground galaxy ... The image shows the centre of the Milky Way, captured by Hubble, Spitzer, and ...

Look closely at this image, stripped of its caption, and join the moderated conversation about what you and other students see. By The Learning Network Look closely at this image, stripped of ...

Dark Matter Ring: The ring was found in the cluster CL0024+17 which is located 5 billion light-years from us. It measures 2.6 million light-years across. NGC 6357: It is a Star Cluster + Nebula ...