Rosetta gives clues to Earth's water's origins, one of the most common minerals in our planet, New Horizons and Dawn to visit minor planets, DNA..
Human head transplants, bone-marrow transplant HIV cure, liver cells grown from stem cells. Plus the toad with the spiky moustache, Pluto's moons..
Brain-to-brain communication between rats, the genetic impact of lack of sleep, old people on Mars, undersea vents and more!
A small animal's toilet habits provide piles of data, the not-so-useless appendix, eathquakes, poison, oral bacteria, evolution and heaps more!