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 ...

Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside ...

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

Observations show Andromeda has a more active star formation history than the Milky Way, potentially due to a past galactic collision. NASA recently released images of the Andromeda galaxy ...

Choose from Abstract Galaxy Background stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else. Video Back Videos home Signature collection ...

In 1952, astronomers began the first major radio survey of the Milky Way. Astronomers theorized that the galaxy had a spiral structure, and finally, they detected the spiral arms, revealing the Milky ...

blast zap explosion abstract background Giant Violet interstella on Galaxy background with Milky Way spiral,Universe and starry concept desig,vector Giant Violet interstella on Galaxy background with ...

The Milky Way is more than just the glittering ... hydrogen clouds like an artist sculpting a masterpiece. Galaxy NGC 4535 Floating 50 million light-years away in the Virgo constellation, the spiral ...

The telescope's namesake, American astronomer Edwin Hubble (1889 - 1953), first discovered that this spiral nebula existed miles outside of our own Milky Way galaxy – 2.5 million light years to be ...