Muscle loss in elderly people could be prevented or reversed following experiments to be conducted on the International Space Station.
Scientists have voted to change the definition of a kilogram after more than 100 years in a landmark decision.
Uber has reported a quarterly loss of $1.07bn (£820m) as it pumped money into bikes, scooters and food deliveries.
A frozen "super-Earth" discovered six light years from Earth could be capable of harbouring life, scientists have said.
An enormous crater believed to have been caused by an asteroid that slammed into Earth 12,000 years ago has been found beneath the ice in Greenland.
Snapchat has launched a new feature with a focus on friendships in a bid to take on rivals like Facebook and Instagram.
A gamer in the US has pleaded guilty to making a hoax call that led to a man being shot dead by police.
Astronomers have discovered an enormous "ghost" galaxy lurking near the Milk Way through the European Space Agency's Gaia satellite.
Russian cyber security firm Kaspersky Lab is moving key parts of its business out of Moscow in a bid to address the risks arising from its exposure to the Russian intelligence services.
A quiet revolution could this week change the standard for weighing everything from drug doses to jumbo jet fuel.
A plunge in Apple's share price has helped spark another session of selling on Wall Street.
Russia has denied suggestions that it was responsible for Finland having its GPS signal disrupted during NATO war games.
A rare shark nursery has been found off the Irish coast by marine scientists exploring the country's coral reefs.
A five-minute neck scan could predict cognitive decline 10 years before symptoms appear, according to scientists.
Google has diluted a controversial scheme which critics say encourages the creation of "fake" price comparison sites - prompting one ad agency to say Google's "screwed everyone over".
Magnetic radiation from giant solar storms caused the sudden and nearly instantaneous detonation of dozens of sea mines in Vietnam in the 1970s, research has confirmed.
SpaceX billed Elon Musk's Tesla Roadster as on "an endless road trip past Mars" when it launched in February.
PayPal has told the former English Defence League leader Tommy Robinson it will no longer process payments on his behalf.
Google is rewriting its policies on workplace sexual harassment following a staff walkout over its perceived failings to tackle abuses.