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	Astronomy - Ch. 28: The Milky Way (18 of 27) H II (Hydrogen II) Regions (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (24 of 27) Population I vs Population II Stars (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (19 of 27) Planetary Nebulae (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (17 of 27) Stellar Associations Explained (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (23 of 27) Companion Galaxies (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (8 of 27) Where Does the Spiral Structurer Come From (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (20 of 27) Supernovae Remnants (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (11 of 27) Mystery of Star Motion (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (22 of 27) What is the Interstellar Medium (Michel van Biezen) View
	Astronomy - Ch. 28: The Milky Way (9 of 27) The Spin Arm Pitch Angle (Michel van Biezen) View