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  1. What is Astrophysics? | Space

  2. 天体物理学 - 维基百科,自由的百科全书

  3. NASA Astrophysics - Science@NASA

  4. Astrophysics - Wikipedia

  5. Astrophysics | Astronomy, Cosmic Objects, & Space | Britannica

  6. Introduction to Astrophysics - Department of Astrophysical …

  7. What is astrophysics? | Space - EarthSky

  8. What is Astrophysics, and Why It Matters? - Astronomy Explained

  9. Astrophysics | Physics - University of California, Berkeley

  10. What Does It Take to Be an Astrophysicist? | Space