Disc.Sci+1

Did Aliens Nuke Mars? A strange discovery by NASA's Mars Curiosity rover suggests the Red Planet was home to an alien nuclear war 300 million years ago - could this be true.

Earth is hit by 100 tons of rock from space every day. Most burn up in the atmosphere, but a single rock wiped out the dinosaurs. Could it happen again.

When a massive star dies it can direct a blast of radiation that would obliterate life of earth. What are the chances of this event occurring.

A countdown of the top 20 internet legends. From lighting matches with bullets to kayaking in the snow, this features only the smartest and bravest human-kind has to offer.

Focuses on creative garage innovators taking inventions to the next level, from using fire to charge phones to creating the world's fastest electric dragster.

Richard ventures 2km beneath the Alps into the world's longest underground railway connection, the Brenner Base Tunnel, riding some giant machines.

Richard explores the huge Tottenham Hotspur Football Stadium in London. He explores a pitch that splits and rolls away and takes a terrifying walk on the stadium roof.

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.

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.

Countdown of NASAs top six the deadliest stars - 'vampire' stars that drain their neighbours, supernovas and white dwarfs that destroy planets.

How do they build a tractor every three minutes to power Indian agriculture? How do they cast the bronze bells that help Swiss farmers keep track of their cows.

How do they collect millions of real birds' nests to make birds' nest soup? Plus, how do they use aerospace technology to make rowers go faster.

How do they quadruple the power of the world's biggest engines with the most powerful turbochargers? How do they build new roads from old waste plastic.

How do they harness the wind to power a racing yacht to Olympic gold? How do they make a sword fit for an officer at the world's largest sword factory.

How do they make the amplifier used by rock legends, the famous Marshall amp? Plus, how do they turn wet clay into frost-proof garden pots.

How do they clean the world's tallest twin towers? How do they make a jigsaw where every piece is unique? How do they craft Olympic level hockey sticks.

Phil Torres and Dr. Tori Herridge go on a journey to Siberia for the biggest ever Ice Age dig, unearthing a treasure trove of animals buried in the ground for thousands of years.