Discovery Channel +1 Thursday

Experts analyse what happens when galaxies containing billions of stars collide and are left irrevocably changed

Stunning 'blow apart' CGI animation and the latest archaeological investigations reveal how the most iconic buildings of the ancient worlds were built, stone by stone

At the last water source, an abandoned cage may be the only viable shelter. Teal and Frank both score bow wins. A second crocodile has Wes on edge

Novice farmsteaders in Iowa are on the verge of losing the legacy of their late father. The Raneys must quickly give them an off-grid masterclass