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Helen Keen's It Is Rocket Science Episodes

  1. Next Tuesday 23:00
    BBC Radio 4 Extra

    Episode 1Series 2

    1/4 Are there civilisations on other planets, and, if so, why do they never call?

  2. Tue 20 Oct 2026 23:00
    BBC Radio 4 Extra

    Episode 2Series 2

    2/4 Funny, factually-accurate look at space travel and explosive nuclear propulsion.