Spiral galaxies, such as the Milky Way, consist of a flat disk with a bulging center and surrounding spiral arms.
And, the galaxy's red spiral arms and the swirling spokes seen between the arms show dust heated by newborn stars.
West of Central America, Celia sports spiral arms but no obvious eye.
Farther from the center of the storm, spiral arms appear thinner and smoother.
Stars are born in these interstellar clouds, which are located in the spiral arms of our Milky Way Galaxy
The disc harbours the Sun and most of the galaxy's other stars, as well as the beautiful spiral arms.
The 100 billion stars of this galaxy are chiefly located in two spiral arms that extend from the nucleus.
Astronomers think the smaller blue galaxy peeking through the spiral arms may have actually punched a hole in the larger galaxy.
Last go-round, M82's gravity likely raised density waves rippling around M81, resulting in the richness of M81's spiral arms.
Clusters of young bright blue stars highlight the galaxy's spiral arms. In contrast, red giant stars in the process of dying are also found.
Gravitational tidal interactions with other members of its group have likely caused the spiral arms of NGC 3190 to appear asymmetric around the center, while the galactic disk also appears warped.
In the case of the Whirlpool Galaxy, above, you can see exactly where along its great spiral arms it's presently forming stars, just from this red glow of the hydrogen!
