What We Still Don’t Know is a three part 2004 television mini-series written and presented by Sir Martin Rees and first aired on Channel 4 in the UK. The series investigates some of the great unanswered questions of science, with each episode tackling a different major question. The series won a British Indie Award in the following year for best science documentary.
We have all three episodes of the series available to watch here on Documentary Vine, navigate between them via the numbered tabs beneath the video player or by using the episode link list below. When you have finished stick around to watch more science documentaries.
Sir Martin Rees is also an author of a book with the same title, What We Still Don’t Know, it is out of print and was published in hardback only – it can be difficult to get hold of a copy but check the Amazon links below to check for current stock.