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Is There a Shadow Universe

   2014    Science
When we look up into the sky it appears we live in a universe that is filled with light. But scientists are now certain there is far more matter in the dark portions of our universe that we can’t see or touch. There’s something hiding in the shadows. Cosmologists agree that 'dark matter' has helped shape our Universe, but now they need to figure out what dark matter is. What’s going on in this hidden world? Could it have formed its own dark stars, planets, and even life forms? Could this Shadow Universe threaten our world of light?
Series: Through the Wormhole Season 5

U2 Live at the Rose Bowl 2of3

   2010    Art
The tour was designed by Willie Williams, who has worked on every U2 tour since 1982. Williams had been toying with ideas for 360-degree stadium staging for U2 for a number of years, and presented sketches of a four-legged design to the group near the end of their Vertigo Tour in 2006. The inspiration for the 'spaceship-on-four-legs' design, nicknamed 'the Claw', came from the landmark Theme Building at Los Angeles International Airport.
Series: U2 Live at the Rose Bowl

Cosmic Holes

   2007    Science
Today, we know black holes exist, and now scientists are trying to confirm that other holes lurk in hyperspace. Our infinite cosmos could contain a variety of "holes" such as black, white, "mini" and wormholes. White holes are the reverse of black holes; instead of matter being sucked into it, matter is ejected out. Wormholes are gateways in the fabric of space and time. They are included in Einstein's field equations as possibilities for their existence. Neither white holes nor wormholes have ever been found. Learn about new discoveries including, colliding binary black holes, intermediate black holes and manufacturing mini black holes.
Series: The Universe

Framing Defense

   2015    History
In the seventh episode, as the murder trial continues, Steven's attorneys present their case that law enforcement officials planted evidence to frame him.
Series: Making a Murderer

Gauguin Vision After The Sermon

   2020    Art
The Vision After the Sermon, also known as Jacob Wrestling with the Angel, is a painting full of symbolism and mystery. But what does Gauguin’s famous work have to do with a 17-year-old girl called Madeleine, with Victor Hugo’s Les Miserables, and with sumo wrestlers?
Waldemar Januszczak reveals all as he investigates Gauguin’s epic religious painting about good and evil, temptation and desire.
Series: The Art Mysteries

Humpback Whale

   2006    Nature
Few sounds are more beautiful or moving than the underwater songs of the humpback whale. Male whales compete with their songs, which often last for 10 minutes at a time, and can be repeated for hours on end. Whales separated by thousands of miles of sea will sing almost identical songs. Researchers have found that the songs change throughout the breeding months, following a mysterious pattern repeated across the waves. Whales also use sound to hunt. To catch herring, humpback whales release a stream of bubbles to form a shimmering, circular fishing net. Emitting a repetitive loud scream, they scare the fish into a tight ball, then lunge out of the water to swallow the shoal whole. Now it seems that the long-held image of the gentle giant must change to one of a ferocious and opportunistic hunter.