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The world's biggest nuclear fusion project has entered its five-year assembly phase.

A postcard helped researchers pinpoint the probable spot near the French village of Auvers-sur-Oise.

A retired New York fashion executive with a "zest" for life dies in a rare shark attack near Portland.

The drill includes fire so heavy the US military temporarily puts two regional bases on alert.

An audacious mission to bring rock samples from Mars back to Earth is about to begin - find out more with our illustrated guide

Our personalities are shaped by our experiences and social interactions, so how might the months spent isolated from friends, family and colleagues have altered us?

A belief system born of indigenous communities in the Philippines could help protect the country’s endangered species, from leopard cats to cloud rats.

The researcher tells BBC Trump's claims about the drug's effectiveness are not backed by science.

The European aerospace company will make a huge satellite to bring Mars rocks back to Earth.

How did exiled Venezuelans and former US Special Forces end up joining what looked from the outset like a suicide mission?

The rival nuclear powers are trying to out-build each other along their disputed Himalayan border.

Archaeologists have pinpointed the source of the stones to an area 15 miles north of the site.

Figures suggest India, China, Nepal, Russia and Bhutan have seen rising tiger numbers.

The heads of Amazon, Apple, Facebook and Google faced accusations of bias and unfair competition.

Getting to the Red Planet is challenging, and so it working out how many have failed.

As the desert grows, tensions around water are rising

The Ugandan hunter said that he had killed the animal in self defence when he was attacked.

A UK man and two people in Florida have been charged over the hijacking of US Twitter accounts.

Twitter says employees were tricked into handing over credentials to the cyber-attackers.

A Berlin mystery is solved as a fox is found to have many stolen flip flops and sports shoes.

For centuries, people have relied on the gushing, colour-changing waters of this ancient well – but no-one has ever been able to locate its source.

Kenyan activist Phyllis Omido has been ignored, harassed and arrested, but she never gave up.

The SpaceX capsule touches down off Florida, in the first crewed US water landing in 45 years.

Have a look at a lockdown DIY project, a musician's live-in transport and a couple's "staycation-mobile".