From slime mould to space junk, and Botox to cow burps, Horizon journalists covered a wide range of stories in 2015 - and learned some curious facts along the way. Here are our favourites.
What makes a scientist? You might think of lab research, years of specialised training and technical jargon. But an exhibition now touring across Europe could change your mind.
Tiny capsules embedded in the clothes we wear could soon be used to counteract the rise of sensitive skin conditions.
To colonise the solar system we need to figure out how to build settlements on alien surfaces, and, according to Professor Matthias Sperl, a material scientist from the German Aerospace Center (DLR), our best bet rests on 3D-printed bricks made from moon dust.
Garments containing nanoparticles will protect your skin.
Intelligent cameras can identify criminal activity.
Scientists want to build on the moon using bricks 3D printed from lunar dust.