This month, Horizon goes underground and underwater to find out about the clean-energy promise of the world's longest well, pollution in the deepest place on earth, and how the noise of ships is turning harmony under the sea into a cacophony.
The deepest parts of the ocean were once assumed to be pristine, but recent discoveries of chemicals and radioactive products at the bottom of underwater trenches has shown that humanity’s footprint extends to the furthest reaches of the earth – and it could affect the balance of oxygen in the oceans and carbon dioxide in the atmosphere.
The asteroids in our solar system are the remnants of planetary formation. They hold clues about how the Milky Way formed, but they also hold promise and peril for humans as the source of both rich materials and potentially dangerous cratering events. This month we look at the latest in asteroid research. We speak to Dr Naomi Murdoch, a planetary scientist, about her work investigating asteroids, how to land on them and how to defend Earth from a dangerous event. We look in depth at how scientists in the field of planetary defence are developing rapid response techniques to detect an Earth-bound ‘imminent impactor’, determine within days whether it’s dangerous, and evacuate people from the danger zone. We speak to scientists studying exactly what asteroids are composed of so that we can categorise them from Earth, and we look at work studying asteroid dust to see what it can tell us about the early days of our solar system and the origins of life on our planet.
With around half a million species of insects reported to be at risk of extinction and studies already showing a large decline in abundance, this month Horizon looks at what reduced insect biodiversity means for us – and what we can do about it. We speak to rove beetle expert Dr Alexey Solodovnikov about the services insects provide, from waste disposal and pollination to monitoring climate change and providing information about a new pandemic. We find out how scientists hope to cut the use of pesticides – one of the big culprits for reducing insect diversity – with new ways of pest control. We look at how efforts to boost urban green space in Europe’s cities is impacting insect life and we ask whether people’s attitudes to insects affect conservation efforts.
The hyperloop is what you get when you take a magnetic levitation train and put it into an airless tube. The lack of resistance allows the train, in theory, to achieve unseen speeds, a concept that is edging closer and closer to reality – and could provide a greener alternative to short-haul air travel.
Picture yourself speeding down the highway with no hands on the wheel, checking your emails while your car takes care of responding to what’s happening on the road. Would you trust your car to make the right decisions? If you have doubts, you’re not alone.
Hyperloops could replace short-haul air travel.
Car manufacturers are rolling out higher levels of automation but public acceptance is lagging behind.
Dr Kate Rychert studies ocean plate structures.