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Ken Croswell, Ph.D
Buku audio oleh Ken Croswell, Ph.D
Exploding Stars Turn Red: Two stars merge into one- and explode in a red flash. Ring Around the Asteroid Penilaian: 0 dari 5 bintang0 penilaianNext Stop, Pluto!: This month, a speeding spacecraft will zoom past the farthest world yet. Penilaian: 0 dari 5 bintang0 penilaian