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World’s most-spoken languages may have arisen in ancient Iran

About 3 billion people speak Indo-European languages like English and Hindustani, and it seems the first such tongue was spoken south of the Caucasus

The volcanic eruption on Hawaii is now making an acidic fog

As lava from Kilauea plunges into the Pacific Ocean, clouds of hot acidic steam are being blasted off – and the eruption shows no signs of slowing

Fertiliser feeds us but trashes the climate – now there’s a fix

The way we make ammonia for fertilizer was developed a century ago and produces more than 1 per cent of all carbon emissions. Now we may have a replac

Push to rid poorer nations of harmful trans fat is long overdue

The World Health Organization has rightly agreed to demand all countries remove artery-clogging trans fat from food, says Geoffrey Webb

Upend atom! We’ve found a whole new way of doing chemistry

We thought we knew how molecules worked – but the discovery of an entirely unknown class of reactions has forced us to rethink the basics

Falling mini-moons may have created Earth’s first continents

The early Earth was likely orbited by lots of small moons, which rained down onto the surface and could have built up ancient continents

The US isn’t fertile enough to sustain itself without immigrants

For every 1000 women in the US, only around 1760 children are born, meaning the US population cannot replace itself without immigration

Can CGI finally convince us that Neanderthals were smart?

We still see Neanderthals as dim, ape-people despite mounting evidence of their intelligence. Can a CGI makeover with Andy Serkis help transform thei

Hawaii’s erupting volcano may blast out ‘10-tonne cannonballs’

As Kilauea continues erupting, lava is mixing with water, creating steam that could trigger massive explosions and throw large rocks up to a kilomet

Satellite images reveal how powerful North Korea’s nukes are

Studying pictures of North Korea's nuclear test site has let researchers calculate its weapons are about 10 times more powerful than the bomb dropped