In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

"At first, I thought I completely messed up during our research," Olivia Achenbach of the United States Naval Academy told reporters on Monday (Jan. 13) at the 245th meeting of the American ...

"Our finding offers key constraints for models of massive galaxy formation and the origin of spiral structures in the early universe." In the Universe around us today, galaxies come in a number of ...

Wherever we look in the Universe we see spiral galaxies. 70% of all galaxies today have this spiral structure that show up in their stars and their gas that’s used to make more s ...

Symmetrical spiral galaxies showcase the universe's natural beauty, revealing stunning artistry and intricate cosmic patterns ...

"Without Andromeda as a proxy for spiral galaxies in the universe at large, astronomers would know much less about the structure and evolution of our own Milky Way," the ESA representatives wrote.

This one appears to us now as it looked when the universe was about five billion years old. The sun formed within a cloud of gas in a spiral arm of the Milky Way galaxy. A vast disk of gas and ...

Spiral galaxies have a thin ... so too have we found that our galaxy holds no special place in the universe. Galaxies observed in the Hubble Deep Field image The image above is from the Hubble ...

Somewhere in between, humans realized the universe is much larger than our Milky Way — that the spiral nebulas visible through telescopes were, in fact, other galaxies in their own right.