The film gives an extensive insight into the concept, the recording of the songs and the designing of the album cover. It includes exclusive interviews with almost every key person, who participated in producing the album. The band is represented by all three surviving members – David Gilmour, Nick Mason and Roger Waters. Other participating people include: Joe Boyd, Venetta Fields, Jill Furmanovsky, Roy Harper, Brian Humphries, Peter Jenner, Nick Kent, Aubrey Powell, Ronnie Rondell Jr. (who depicted the 'urning man' on the original cover), Gerald Scarfe, and Storm Thorgerson.

This episode explores the nature of the greenhouse effect (discovered by Joseph Fourier and Svante Arrhenius), and the evidence demonstrating the existence of global warming from humanity's influence. Tyson begins by describing the long-term history of the planet Venus; based on readings from the Venera series of probes to the planet, the planet had once had an ocean and an atmosphere, but due to the release of carbon dioxide from volcanic eruptions, the runaway greenhouse effect on Venus caused the surface temperatures to increase and boiled away the oceans. Tyson then notes the delicate nature of the amount of carbon dioxide in the atmosphere can influence Earth's climate due to the greenhouse effect, and that levels of carbon dioxide have been increasing since the start of the 20th century. Evidence has shown this to be from mankind's consumption of oil, coal, and gas instead of from volcanic eruptions due to the isotopic signature of the carbon dioxide. The increase in carbon dioxide has led to an increase in temperatures, in turn leading to positive feedback loops of the melting polar ice caps and dethawing of the permafrost to increase carbon dioxide levels. Tyson then notes that humans have discovered means of harvesting solar power, such as Augustin Mouchot's solar-driven motor in the 19th century, and Frank Shuman's solar-based steam generator in the 1910's. Tyson points out that in both cases, the economics and ease of using cheap coal and oil caused these inventions to be overlooked at the time. Today, solar and wind-power systems would be able to collect enough solar energy from the sun easily. Tyson then compares the motivation for switching to these cleaner forms of energy to the efforts of the Space race and emphasizes that it is not too late for humanity to correct its course.

Join the Mars rovers Spirit and Opportunity for an awe-inspiring journey to the surface of the mysterious red planet. Through the eyes of these two intrepid, death-defying rovers, and with NASA scientists and engineers at your side, you’ll see Mars in a way no one ever has before. You’ll feel what it is like to stand on the startling surface of the planet that’s intrigued mankind for eons. And you’ll uncover its ultimate mystery: Is there life on Mars? Roving Mars – it’s the ride of a lifetime.

Travelling from the unique Muslim contribution in the medieval south, Andrew Graham-Dixon immerses himself in true Spanish culture and meets the people who live and work with this artistic legacy. He looks at Muslim political and cultural influence as he travels from Cordoba to Granada, seeing classic buildings such as the Great Mosque in Cordoba, the Alcazar in Seville and the Alhambra in Granada. He also shows how the Moors introduced new foods – including citrus fruits, coffee and spices

Kurt Cobain, lead singer, guitarist, and songwriter of Nirvana, remains an icon 20 years after his death. Here, we take a journey through Cobain's life and his career with Nirvana through the lens of his home movies, recordings, artwork, photography, and journals. An authorized documentary from director Brett Morgen, from Cobain’s early days in Aberdeen, Washington to his success and later downfall with the grunge band Nirvana, this documentary received an award at the 2015 Sundance FilmFestival.

the rise and fall of a tech industry prodigy. Interviews with his friends and loved ones paint a portrait of Swartz as a martyr of freedom of information and hail his fight for the public's right to access tax-funded academic and scientific research, culminating in a personally devastating two-year Federal lawsuit." An avid researcher who had previously accessed otherwise private databases, Swartz, acting "in the grand tradition of civil disobedience to declare... opposition to this private theft of public culture" used MIT computers to access tax-funded research that would otherwise be held privately by for-profit publishers, an incident many viewers may remember from national headlines just a few year ago. Though neither MIT nor the digital repository Swartz accessed pressed charges, a US Attorney stepped in and filed a 13-count felony charge against Swartz, threatening him with over $1 million in fines and up to 35 years of jail time. Despite the defense of his peers, these events launched Swartz into a two-year long downward spiral of withdrawal and depression. Aaron Swartz's untimely death at the age of 26.