Anomalous arms are seen in this composite image of NGC 4258 from NASA Chandra X-ray Observator, NSF Karl Jansky Very Large Array, NASA Hubble Space Telescope and Spitzer Space Telescope.
Anomalous arms are seen in this composite image of NGC 4258 from NASA Chandra X-ray Observator, NSF Karl Jansky Very Large Array, NASA Hubble Space Telescope and Spitzer Space Telescope.