Wednesday, June 22 at 9:00 p.m.
Space Shuttle Disaster
On February 1, 2003, the space shuttle Columbia disintegrated over Texas just 16 minutes before it was due to land. All seven astronauts aboard perished; the worldwide repercussions on the future of the space shuttle program were enormous. What caused the Columbia tragedy? An engineering flaw? A failure within NASA? A lack of financing? Could this catastrophe have been avoided? Through interviews with astronauts and their families, as well as with members of the Columbia Accident Investigation Board, this program gives viewers a new look at the Columbia tragedy - and at NASA itself. From the creation of NASA through decades of technical and financial compromises, "Space Shuttle Disaster" gets to the heart of what went wrong - and how to make sure it never happens again.
Wednesday, June 29 at 9:00 p.m.
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What Are Dreams
What are dreams and why do we have them? Are they a window into a hidden realm within us? Science is only just beginning to understand. NOVA joins the leading dream researchers and witnesses the extraordinary experiments they use to investigate the world of sleep. From human narcoleptics to sleepwalking cats, from recurrent nightmares to those who can't dream, each sequence contains a vital clue to the question these scientists are pursuing: Why do we dream?