Equatic is among a wave of start-ups exploring how the ocean could be harnessed to capture and store carbon. But not everyone is sure it's such a good idea.

Patients who beat cancer can be left with Lymphoedema, an incurable, chronic and painful condition. Sufferers are fighting to bring this hidden condition to light.

Global temperatures rose and extreme weather ramped up, but there were also some significant breakthroughs for the climate this year.

Our social goals change in surprising ways over our lifespan – and understanding this can help us build fulfilling connections with others, research suggests.

The Geminids are an astronomical highlight of the year, creating a spectacular show of shooting stars every December. Scientists are now starting to understand where they came from.

Amid talk of sustainable aviation fuel and electric flights, there's another form of air travel currently being mooted as a green alternative to flying: the airship.