Rishi Sunak is the first person of colour to take the top post, but he faces a host of problems at home – as well as a Conservative Party tearing itself apart.
The English astronomer and navigator Thomas Harriot died in 1621, leaving behind 8000 pages of notes containing a trove of unpublished scientific discoveries.
Although Kamala Harris is the third woman to be a vice-presidential nominee, she's the first with a realistic chance to win office.
A new "optical micro-comb" chip can squeeze three times the traffic of the entire NBN through a single optical fibre.
Dr Kaye Morgan hopes the phase contrast x-ray technique she’s working on will help doctors and researchers detect lung problems earlier.
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