First broadcast: on BBC HDLatest broadcast: on BBC Two England
Topical science series. Dr Kevin Fong finds out what surgeons can learn from other professionals who make life and death decisions under pressure. Show more
First broadcast: on BBC Two HDLatest broadcast: on BBC Four HD
Horizon meets Dr Mary Schweitzer, who may have found traces of DNA within the fossilised bones of a Tyrannosaurus rex - a discovery that could revolutionise our understanding of these beasts. Show more
First broadcast: on BBC Two ScotlandLatest broadcast: on BBC Four HD
Horizon reveals the scale of the problem of space junk. In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris. Show more
