BBC

Ten years ago an earthquake detected in North Korea turned out to be the country's first ever nuclear test. Seismologist Mika McKinnon explains how scientists tell the difference.

Astronaut Chris Hadfield discusses with Sarah Montague the importance of fear.

Conservative US blogger Matt Drudge suggests warnings over Hurricane Matthew are a government conspiracy, but critics say his comments are wrong and dangerous.

A humpback whale which was stranded on a sandbank off Australia frees itself after its calf was filmed apparently pushing her into deeper water.

Nobel laureates are getting older in every field but one. Could it all be down to quantum mechanics?

Levels of beneficial omega-3 oils in farmed salmon have fallen significantly in the past five years.

A landmark deal has been struck by the aviation industry to limit greenhouse gases, but environmentalists are unimpressed.

Young African scientists show off their inventions, including a prototype of flying car, at an expo in the South African city of Johannesburg.

Scientific detective work on fossils collected in Victorian times has identified two new species of ichthyosaurs - the giant sea reptiles that swam at the time of the dinosaurs.

Half a century of the planet's volcanic eruptions and earthquakes go online in a unique animated app.

Half a century of the planet's volcanic eruptions and earthquakes go online in a unique animated app.

Fracking can go ahead in Lancashire, says the government, in a landmark ruling for the UK shale gas industry.

New, independent research seen by the BBC suggests Heathrow airport could build a new runway without breaking European pollution laws.

Footage released by the US Geological Survey has been released of the lava lake on top of Hawaii's Kilauea volcano.

The common toad is in decline across much of the UK, and needs better protection, say conservationists.

Scientists are a step closer to solving the mystery of one of the great animal migrations - the journey of eels to the Sargasso Sea.

What are the potential uses for molecular machines, which have won the 2016 Nobel Prize in Chemistry.

Our life spans appear to be limited to about 115 years, according to US scientists.

Amazon boss Jeff Bezos has furthered his ambition to launch people into space by practising a critical safety manoeuvre on his New Shepard vehicle.

The 2016 Nobel Prize for Chemistry has been awarded for developing the world's smallest machines.