MRI scanners need liquid helium to cool their magnets.
Vast reserves of crucial helium have been found in Tanzania. Here's how the scientists did it.
In our modern understanding of terror, Islamic extremism seems to trump everything else. This is a mistake.
Eight years to the day after she conceded defeat to Barack Obama, Hillary Clinton cemented her triumph over Bernie Sanders.
Mobile phones have many benefits. But they can also interrupt classes and distract pupils.
More pupils in Ghana, Malawi and South Africa are taking smartphones to school. These can be useful learning tools – or terrible distractions.
Case isn’t about free press, it’s about protecting privacy.
Andrew Matthews / PA Archive/Press Association Images
There is a stronger public interest in privacy than in revealing salacious showbiz title-tattle, no matter what the papers say.
The orange-breasted sunbird is endemic to South Africa’s fynbos.
Given the global commitment to conserve biodiversity in the face of climate change, it is important to understand how biodiversity arises in the first place – and how it is maintained.
Nothing like a story with a happy (nerve) ending.
New breakthrough in how to test proteins linked to touch and movement could have major implications for strokes, diabetes, spinal injuries and much more.
Villages across Nepal remain strewn with rubble, the quake victims still living in tents and flimsy sheds.
Over 8,500 were killed in the 2015 Nepal earthquake, so how is the country coping?
Women over 60 are being killed in their own homes - but little more is known about these crimes.
The Falkland Islands (Las Islas Malvinas): a rocky outpost at the centre of a centuries-long dispute.
A UN committee has agreed with the science underpinning Falklands boundary claims, but without solving the sovereignty issue the dispute is no closer to a solution.
David Cameron chairing a COBRA meeting in 2014.
Neil Hall / PA Archive/Press Association Images
The government's crisis management committee sounds as if it can strike fast and effectively.
Commuters react to the Brussels attacks.
Anthony Devlin / PA Wire/Press Association Images
Most people will be disgusted at attempts by the Brexit lobby to use the terror attacks for their own political ends.
A father reads to his son while sitting under a mosquito net. Mosquitoes have undergone evolutionary changes due to long-lasting insecticide-treated nets.
Georgina Goodwin and Vestergaard Frandsen
Although there have been global efforts to eliminate parasites, some parasites and vectors will have survived attack because they have evolved resistance.
Alteractions between town and gown go back a long way.
It could all get rather violent.
TJ Photography UK/Shutterstock
Archaeologists are launching a crowdfunded search for Lindisfarne monastery, famous for St Cuthbert and Lindisfarne Gospels.
Jerusalem has been mooted as England's new national anthem – best swot up on its history.
So-called 'healthy towns' will address child obesity and dementia, but the real killer remains at large.
Both victims and perpetrators should receive help - but not at the expense of the other.
A new three-year pilot programme to help the perpetrators of domestic abuse will start this April, but as investment in victim help declines, questions have arisen as to just how effective it can be.
The UK government has become increasingly desperate to find any means it can to reduce its number of new migrants.
Australian citizens make up one of the largest groups entering the UK each year for work or study. But this could change as Australians get swept up in Britain's efforts to reduce net migration.
A portion of the East Antarctic Ice Sheet, called Wilkes Land, flowing into the ocean.
Michael Hambrey/Glaciers online net
The way ice sheets respond to global warming may be more predictable than previously thought