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Recent observations suggest that dark energy is changing over time. Theorists wonder if dark matter is, too.

The Foxtrot Network is thought to be responsible for about 35 murders in Europe, and uses violence-as-a-service tactics.

Dozens of Ethiopians are awaiting execution - some called the BBC to tell their stories.

BBC Verify has spoken to experts and analysed satellite imagery to piece together what we know about the site, and the potential impact of a US strike.

African states should allow EU to build and run cities in their countries, Germany's Africa Commissioner tells the BBC.

Moroccans accuse Spain of colonialism by retaining control of Ceuta and Melilla.

Settler violence against Palestinians is on the rise in the West Bank, as settlements and outposts expand.

A State Department presentation at HIV conference put Ivory Coast in East Africa and made Nigeria landlocked.

Experts told BBC Verify Google's new feature which let people generate fake satellite images could be misused.

This comes after thousands of migrants were reported to have illegally crossed into the territory on Thursday and Friday.

Iran may believe it can control its conflict carefully enough to keep pressure on the US while avoiding an all-out war.

Take your personal data back with Incogni! Use code SCIENCE at the link below and get 60% off an annual plan: https://incogni.com/scienceHumans use conservat...

Get a copy of What If? 2 and Randall’s other books at: https://xkcd.com/booksMore serious answers to absurd questions at: https://what-if.xkcd.com/This quest...

Britain's weak productivity growth and labour shortages are creating an opportunity for China's robotics firms.

This is why NASA never sent Voyager 1 to Pluto.In November of 1980, Voyager 1 reached Saturn — and at that moment, NASA had to make a choice that could never...

The US and China are locked in a race to the lead the world in robotics and artificial intelligence.

The former top US health official said he feared Republicans could try to trip him up and use his testimony to prosecute him for perjury.

The out-of-control AI found four logins which allowed it to access multiple unnamed online services.

The actor and musician faces allegations from 10 women in total who say he mistreated them as teenagers.

The film has won rave reviews from film critics but a translator of Homer's work was less than impressed.

Sulemana Abdul Samed, who was diagnosed with gigantism several years ago, has died at the age of 33.

European football's governing body Uefa reacts furiously to proposals from Fifa to seek private investment in its competitions, including the World Cup.

The family of the anatomist vowed to carry out his wish for his body to be preserved using the plastination technique he developed himself.

Birdwatchers tell the BBC how apps have changed their lifelong hobby - and attracted new birders.