AMES, Iowa — Iowa State University’s Martin Pohl is part of a research team that has developed the first complete map of the Milky Way galaxy’s spiral arms. The map shows the inner part of the Milky ...

Our Milky Way galaxy has four arms instead of two, according to just published results of a 12-year study by scientists in the U.K. Unlike our view of other galaxies, it's challenging to figure out ...

St. Louis, Mo. — For decades, astronomers have been blind to what our galaxy, the Milky Way, really looks like. After all, we sit in the midst of it and can’t step outside for a bird’s eye view. Now, ...

Why it's so special: What if a galaxy had only one spiral arm? Our solar system resides on the outskirts of one of the Milky Way galaxy's estimated four spiral arms, according to Space.com, but not ...