Oceans cover more than 70% of the Earth's surface, yet only 15% of the ocean floor has been mapped in detail. Much remains unknown, including the location of potentially hundreds of thousands of seamounts (underwater mountains), which can be hazardous to navigation. Scientists at the University of Oxford are working with others to compile the most comprehensive analysis of the ocean floor yet.

Back to the Future II led us to believe that we'd all be zipping around on hoverboards by now, so where are they? We ask Dr Clara Barker, and learn about superconductors along the way...

The placenta is a fascinating organ, which allows communication between mother and foetus through the release of bubble-like vesicles. Could the messages within these vesicles provide an early warning of diseases such as gestational diabetes and preeclampsia?

What do you do when a city outgrows its 150 year old sewer system? Build a super sewer of course! We talk to Dr Brian Sheil about the mammoth Thames Tideway Tunnel Project.

When it comes to sensing potentially-dangerous vapours, sniffer dogs are still considered the gold standard. In this animation we learn about chemiresistive sensors, a new type of sensor that may be able to match the noses of our furry friends...

Bats have a bit of a bad reputation, but are they really villains? Or could they, in fact, be superheroes? Find out in our new episode of the Big Questions podcast.

Ever wonder where our feline friends came from and how long they have been by our sides? A team from Oxford University, is using ancient cat DNA from archaeological sites to find out, following cats on a journey through time

Ketones. It’s the buzz word in the fitness world at the moment and known as the alternative energy source. With the Tour de France set to start in a few weeks we want to know: Why are athletes using #ketones ?

Our world is getting more and more densely populated. By 2050 there’ll be nearly 10 billion people on our planet and agricultural demand is predicted to rise by 70%. So how will we ensure that every human alive gets the food they need?