Horizon shows the Hubble Space Telescope's latest discoveries on the evolution of structure in the Universe, including the likely location of black holes at the centres of galaxies.

A US expedition follows in the footsteps of explorer Roy Chapman Andrews across Mongolia's Gobi Desert, asking if dinosaurs never actually became extinct but exist today, as birds.

A look at how life began on Earth, exploring whether it evolved on the ground, in the sea or in space and considering the theory that it may have begun in the molten world below the ocean floor.

A robot called Dante with eight purple legs, four eyes, and a long nose goes to an active volcano in Antarctica to find out if volcanoes contribute to the hole in the ozone layer.