Authors: Alex Filippenko

  • Understanding the Universe: An Introduction to Astronomy Parts 1-5 (Great Courses) — Alex Filippenko

    Understanding the Universe: An Introduction to Astronomy Parts 1-5 (Great Courses) — Alex Filippenko

  • Understanding the Universe: Whats New in Astronomy, 2003 — Alex Filippenko

    Understanding the Universe: Whats New in Astronomy, 2003 — Alex Filippenko