Across
- 3. a spiral galaxy with a central, linear bar-shaped structure composed of stars, from which spiral arms typically extend
- 4. gravitationally bound galaxy group containing our Milky Way
- 6. a dense, centrally located, and mostly ancient population of stars
- 8. chaotic, asymmetric star systems that lack a distinct spiral or elliptical shape, often formed by gravitational collisions
- 10. a massive, gravity-bound system of stars, gas, dust, and dark matter
Down
- 1. rotating, disc-shaped systems characterized by a dense central bulge and sweeping spiral arms containing gas, dust, and young, hot stars
- 2. ellipsoidal or spherical stellar systems with smooth, featureless profiles, containing 10–15% of local galaxies, often in dense clusters
- 5. Large group of smaller galaxy clusters or galaxy groups
- 7. the largest gravitationally bound structures in the universe
- 9. the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets