Last Watched

"Light"  Sort by

Hiding in the Light

   2014    Science
This episode explores the wave theory of light as studied by mankind, noting that light has played an important role in scientific progress, with such early experiments from over 2000 years ago involving the camera obscura by the Chinese philosopher Mozi. Tyson describes the work of the 11th century Arabic scientist Ibn al-Haytham, considered to be one of the first to postulate on the nature of light and optics leading to the concept of the telescope, as well as one of the first researchers to use the scientific method. Tyson proceeds to discuss the nature of light as discovered by mankind. Work by Isaac Newton using diffraction through prisms demonstrated that light was composed of the visible spectrum, while findings of William Herschel in the 19th century showed that light also consisted of infrared rays. Joseph von Fraunhofer would later come to discover that by magnifying the spectrum of visible light, gaps in the spectrum would be observed. These Fraunhofer lines would later be determined to be caused by the absorption of light by electrons in moving between atomic orbitals when it passed through atoms, with each atom having a characteristic signature due to the quantum nature of these orbitals. This since has led to the core of astronomical spectroscopy, allowing astronomers to make observations about the composition of stars, planets, and other stellar features through the spectral lines, as well as observing the motion and expansion of the universe, and the existence of dark matter.
Series: Cosmos: A Spacetime Odyssey

Tales by Light Submerged

   2015    Art
In this series, the pursuit of the perfect image takes five adventurous photographers on journeys to the ends of the Earth, where they push the limits of their craft. In the first episode, Australian marine photographer Darren Jew captures mating humpback whales in Tonga, a 70-year-old biplane wreck and an active New Guinea volcano.
Series: Tales by Light

Reversing Roe

   2018    Culture
A deep historical look at one of the most controversial issues of our time, highlighting the abortion debate from various points along the ideological spectrum in a winding story of abortion in America. 47 years after it revolutionized abortion law in America, the landmark 1973 US Supreme Court case Roe v. Wade is once again at a crossroads. Reversing Roe depicts the state of abortion and women’s rights in America.

Swallowed by a Black Hole

   2013    Science
The black hole at the centre of the Milky Way is getting ready to feast. A gas cloud three times the size of our planet has strayed within the gravitational reach of our nearest supermassive black hole. And across the globe, telescopes are being trained on the heart of our Milky Way galaxy, some 27,000 light years from Earth, in the expectation of observing this unique cosmic spectacle. For cosmic detectives across the Earth, it is a unique opportunity. For the first time in the history of science, they hope to observe in action the awesome spectacle of a feeding supermassive black hole.

In The Same Breath

   2021    Culture
How did the Chinese government turn pandemic cover ups in Wuhan into a triumph for the Communist party? Award-winning filmmaker Nanfu Wang recounts the experiences of people on the ground in the earliest days of the novel coronavirus and the way two countries dealt with its initial spread, from the first days of the outbreak in Wuhan to its rampage across the United States. The film explores the early confusion and parallel campaigns by authorities to try to contain the virus as well as shape the public narrative through misinformation, resulting in a devastating impact on citizens of both countries.
With emotional first-hand accounts from medical professionals, patients, and grieving family members, and startling, on-the-ground footage from both Wuhan and the U.S., In The Same Breath is a revelatory illustration of the devastating toll that resulted from official missteps at containment of the infection and the widespread phenomenon of social media misinformation, while also highlighting the strength and resilience of the people who risked everything to communicate the truth.

Earth: One Amazing Day

   2017    Nature
An astonishing journey revealing the awesome power of the natural world. Over the course of one single day, we track the sun from the highest mountains to the remotest islands, from exotic jungles to urban jungles. Breakthroughs in filmmaking technology bring you up close with a cast of unforgettable characters: a baby zebra desperate to cross a swollen river, a penguin who heroically undertakes a death-defying daily commute to feed his family, a family of sperm whales who like to snooze vertically, and a sloth on the hunt for love.
Told with humour, intimacy and a jaw-dropping sense of cinematic splendour, Earth: One Amazing Day highlights how every day is filled with more wonders than you can possibly imagine- until now.
The Life of Mammals

The Life of Mammals

2002  Nature
A Perfect Planet

A Perfect Planet

2021  Nature
Ice Age Giants

Ice Age Giants

2013  Science
Walking with Dinosaurs

Walking with Dinosaurs

2025  Science
Becoming Martian

Becoming Martian

2021  Technology
Dinosaur Planet

Dinosaur Planet

2003  Science
Space Race

Space Race

2005  Technology
Oceans

Oceans

2009  Nature