The discussion is a sign the AI firm’s technology may be too critical for even the US government to do without.

The Paris prosecutor’s office told the BBC it had “taken note of the absence of the people summoned”.

The firm founded by Amazon billionaire Jeff Bezos is investigating the failed launch.

A stellarator is difficult to build, but could it be the best way to make fusion energy work?

Ternus will take over running the technology giant in September as Cook steps up to become executive chairman.

The popular messaging service told the BBC in a statement it “categorically denies Ofcom’s accusations”.

As Tim Cook announces his departure from the top job at Apple, these are the key challenges for new boss John Ternus.

Paul Carter checks out the newest phones, gadgets and trends from MWC Barcelona.

Alasdair Keane visits the underground insect farm turning food waste into animal feed.

How research linking climate change and extreme weather events is being used in lawsuits.