In this image, the NASA/ESA Hubble Space Telescope peers into the spiral galaxy NGC 1317 in the constellation Fornax, located ...

The spiral galaxy NGC 3596 is on display in this NASA/ESA Hubble Space Telescope Picture of the Week, which incorporates six different wavelengths of light. ESA/Hubble & NASA, D. Thilker You might ...

Rather than solid arms, spiral galaxies may show density waves—regions where matter slows down and bunches up, like cars in ...

Astronomers used the Hubble Space Telescope to image "peculiar" galaxy Arp 184 (NGC 1961) about 190 million light-years away. Remarkably, the spiral galaxy has only one visible arm.

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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 ...