Lucy Hawking and Stephen Hawking attend the EE British Academy Film Awards at The Royal Opera House in 2015.

Stephen Hawking dead

Professor Stephen Hawking has died at the age of 76, a spokesman for his family said.

In nearly a year at the state department, Rex Tillerson's presence in the organisation has been akin to a virus, ...

The lessons in Tillerson's downfall

Although Rex Tillerson's Cabinet tenure is only now officially over, the former oil tycoon had been a zombie secretary of state for months.

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Rex Tillerson, an oil executive with no prior government experience, had been deeply unpopular within the State Department.

Timing of Tillerson's dismissal stunned observers

The abruptness of the dismissal - hours after Tillerson returned from a tour of Africa and on the brink of awaited talks between Trump and the leader of North Korea - surprised foreign policy experts.

Qualcomm was weakened by legal and regulatory battles on several fronts.

Broadcom block sends ripples across corporate US

Donald Trump has long fashioned himself as the ultimate dealmaker. That makes his decision to block a $US142bn takeover this week all the more remarkable.

Trump sacks Tillerson

President Donald Trump has sacked his Secretary of State, Rex Tillerson, and wants to replace him with CIA director Mike Pompeo.