Which is the bigger threat to wildlife: Radioactivity or humans? Wildlife ecologist Jim Beasley has gone into the contaminated zones around Chernobyl and Fukushima to learn the answer, and his findings are both sobering and inspiring.

Russian artist Uldus Bakhtiozina, who has gained attention for her surreal, staged portraits, breaks down the magic of self-portraiture in our selfie-saturated time.

Russian artist Uldus creates surreal photographic portraits of maidens, demons, heroines and gnomes.

The odd tale of the Maxim Gorky, a 1930s flying Soviet propaganda machine.

Secrecy is often used as a legal shield to cover up illegal actions by businesses. Anti-corruption activist and TED Prize winner Charmian Gooch explains why we should care — and what we should do.