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.

How Ternus responds to challenges facing Apple will go a long way to deciding the tech giant’s future, writes Zoe Kleinman.

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

The firm, co-founded by Sam Altman, said it is “not responsible” for the attack at Florida State University

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.