Disc.Sci+1 Gotthard Base Tunnel. Danny investigates the Gotthard Base Tunnel; costing 18 billion dollars, it's the longest in the world, making journeys through the Alps three times faster. S6, Ep8 2026-10-14 Abu Dhabi Central Market. Danny explores Abu Dhabi's Central Market - a hub for an emerging world destination, complete with offices, parks, shops, and hotels. S6, Ep9 2026-10-14 Curse Of The Seventh Wonder. The Lighthouse of Alexandria is one of the world's original Seven Wonders. Experts investigate its many secrets - did it hold a superweapon? S4, Ep5 2026-10-14 Dead Sea Scrolls: The Dark Truth. The Dead Sea Scrolls in Israel are the oldest biblical texts. New discoveries might finally reveal the hidden meaning behind these manuscripts. S4, Ep6 2026-10-14 Black Holes: The Secret Origin. Supermassive black holes are so large they devour stars and shape galaxies. The latest science may answer why they grow so large. S5, Ep3 2026-10-14 Life & Death On The Red Planet. Once there was life on Mars - but scientists believe a series of devastating mass extinctions transformed a watery planet into a desert. S5, Ep4 2026-10-15