When the PM and Labour leader were asked to make a gesture in front of their Salford audience, Johnson leapt across to grab Corbyn's hand before giving him a pat on the back.
US President Donald Trump has been asking allies to pay billions more for hosting US bases in their countries.
The Tory press office was rebranded as "factcheckUK" for Tuesday's live TV debate.
The National Gallery of Australia has unveiled an ambitious program for 2020.
'Three score years and ten' - the Biblical lifespan - has instead become the point at which people should give up work. The study could persuade governments to raise the state pension age further.
The two leaders locked horns over the NHS, Brexit and the Royal Family in a live TV debate.
The 19-year-old was found with fatal stab wounds by police in east London.
Video shows a woman rescuing a koala from a bushfire in New South Wales. The koala has been treated for his burns and is still in "very serious condition."
Researchers from King's College London trialled omega-3 supplements on 92 children with ADHD in Taiwan and found those with lower levels before supplementation had better focus afterwards.
London School of Hygiene and Tropical Medicine experts trawled through almost two decades worth of fractures in England. The study is considered to be the largest on the topic to-date.
Scientists from King's College London scoured 50-years' worth of studies and found sugar-free gum reduced the risk of decay by 28 per cent. It works by producing more saliva and washing away germs.
The Children's Society surveyed 2,300 youngsters aged between 10 and 17. Results showed eight per cent of children who admitted they were worried had not asked for any help.
Asthmatics are at a higher risk of flu complications or asthma attacks. Adam Blackman, 47, of East Sussex, was put in a coma after getting flu in February this year.
Australian experts have revealed what can happen to your body and mind when you don't get enough sleep. Problems can include poor concentration and skin that's sallow and lacklustre.
Scientists from the University of Maryland did a study which showed that women seemed to be more likely to attempt suicide before an abortion than after, and that one didn't cause the other.
How late can you register to vote in a general election?
Scientists at the Indian Council of Medical Research have completed all three rounds of clinical trials for an injectable polymer that lasts 13 years. Now, it just needs regulatory approval.
An ice axe and a brass compass, among other relics carried by Captain Lawrence Oates during the doomed South Pole attempt, have gone on show after more than a century.
The NTSB on Tuesday laid out its findings in the investigation of the March 2018 crash in Tempe, Arizona, the first-ever death involving a self-driving vehicle.
He's the 10th full-time chief executive in the post-Northern Eagles era, but Stephen Humphreys is confident the days of constant upheaval are over.