Galaxy

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Across
  1. 1. The Galaxy in that the earth is located in
  2. 3. All the celestial objects that orbit the Sun.
  3. 6. a type of galaxy characterized by its smooth, ellipsoidal or spherical shape, containing mostly old stars and lacking significant gas and dust, with little to no ongoing star formation.
  4. 7. an expert in or student of astronomy.
  5. 8. the boundless, three-dimensional expanse beyond Earth's atmosphere, encompassing celestial bodies like planets, stars, and galaxies, and the vast, nearly empty regions between them.
  6. 9. A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
Down
  1. 2. a type of galaxy that lacks a distinct, regular shape, unlike spiral or elliptical galaxies, and often exhibits chaotic structures and a high content of gas and dust, leading to active star formation.
  2. 4. The star closest to the earth
  3. 5. a type of galaxy characterized by a flattened, rotating disk with a central bulge and prominent spiral arms, often containing large amounts of gas, dust, and stars, including both young and old ones.
  4. 8. self-luminous, gaseous, spheroidal celestial body of great mass that produces energy through nuclear fusion reactions, primarily fusing hydrogen into helium.