From the banks of the Bahamas to the seas of Argentina, we go underwater to meet dolphins. Two scientists who study dolphin communication and behaviour lead us on encounters in the wild. Featuring the music of Sting. Nominated for an Academy Award®, Best Documentary, Short Subject, 2000.

A short documentary exploring the ways LGBT couples show affection, and how small interactions like holding hands in public can carry, not only huge personal significance, but also the power to create social change.

CERN and the University of California-Santa Barbara are collaborating in the search for the elusive substance that physicists and astronomers believe holds the universe together -- dark matter. Where is this search now in the realm of particle physics and what comes next?

Legendary drag performer Ocaña in performance with a cardboard Marilyn on the west side of the Berlin Wall.