spiral arms
Milky Way's curves
Spiral arms are the luminous, curved bands of stars, gas, and dust that wind outward from the center of certain galaxies.
They give spiral galaxies their distinctive pinwheel appearance.
Our solar system sits within one of the Milky Way's spiral arms.
The arms are regions of active star formation, appearing brighter because young, hot stars concentrate there.
- Milky WayGalaxy containing Earth
- night skyDarkness above after sunset
- star formationDense cloud becomes sun
- starsLuminous celestial bodies
- star clustersGravitationally bound stellar collections
galactic · galaxy · Andromeda · arm · gas clouds · nebula · stellar nursery · gravitational field · dark matter · stellar · sweeping · spinning · vast · deep space · curving · core · hydrogen · cosmic
- cosmosuniverse, galaxies, galaxy, stars, star
- outer spacesun, moon, planet, star system, solar system
- spacespace, sun, moon, stars, star
- cosmic matterstars, galaxies, dark matter, planets, cosmic dust
- galaxy partsgalactic core, galactic center, nucleus, bulge, disk
- spiral galaxiesMilky Way, Andromeda Galaxy, Andromeda
geometric form
spiral armsstraight
Not curved or crooked
linear · vertical · horizontal · radial · rectilinear
arms, spiral, spiraling, spirals, spiraled, spiral galaxy, spiral arm