|Andromeda, Spiral Galaxy M81 |
Image: Subaru Telescope (NAOJ), Hubble Space Telescope;
Processing & Copyright: Roberto Colombari & Robert Gendler
Study of space depends on what we humans can see at various wavelengths of light using our optical and other instruments. Hubble Space Telescope has raised the level of imagery and information the photos reveal to observes to an entirely new level.
For other details in this portrait of Andromeda check the explanation given for this photo in the APOD site.