Now playing Next USA What happened before the Big Bang? "It's my life's work to try to answer that question," University of Toronto physicist Renée Hložek says. 18/04/2019
Now playing Next USA Radical experiment restores some activity in pigs' brains hours after slaughter New finding challenges the long-held view that brain cells undergo sudden and irreversible damage after death. 17/04/2019
Now playing Next USA Astronaut to establish new spaceflight record for women Koch arrived at the space station in March and is now scheduled to remain in orbit until February. 17/04/2019
Now playing Next USA Declassified U-2 spy plane photos are helping archaeologists uncover ancient sites The images offer a vast trove of information about ancient villages and agricultural sites. 17/04/2019
Now playing Next USA Stonehenge was built by descendants of Neolithic migrants, DNA study shows Genetic material from old skeletons reveals pattern of migration from present-day Turkey. 17/04/2019
Now playing Next USA Inside a bikini-photo startup's scrappy battle to put Facebook on trial The David vs. Goliath contest pits a small startup against one of the most powerful technology companies in the world. 16/04/2019
Now playing Next USA This floating city concept is one way to cope with climate change A U.N.-backed proposal aims to "climate proof" urban areas of the future. 16/04/2019
Now playing Next USA Notre Dame Cathedral fire sparks Islamophobic theories on social media Images and videos of the flaming cathedral spread quickly across social media and were quickly seized upon to push Islamophobic narratives that have flourished in far-right politics. 16/04/2019
Now playing Next United Kingdom Euroviews. Technology can help connect governments and citizens in a true participatory democracy ǀ View Technology can play a big part in helping to create and sustain effective connections between citizens and governments – both national and local. These connections can exist without technology, but it is a powerful, flexible and accessible enabler. 16/04/2019
Now playing Next USA Mark Zuckerberg leveraged user data to fight rivals and help friends, internal docs show Facebook's leaders seriously discussed selling access to user data — and privacy was an afterthought. 16/04/2019
Now playing Next USA Meet the two-armed robot that could pave the way for household bots "We wanted to create a new robot that is right for the AI age." 15/04/2019
Now playing Next Europe News EU governments approve copyright reform targeting tech giants Not all member states agreed with moving forward with the contentious copyright reform. 15/04/2019
Now playing Next USA The world's glaciers hold lots of nuclear fallout. Here's what might happen when they melt. New research finds high levels of radioactive particles frozen in the ice. 15/04/2019
Now playing Next USA Thousands of identities, personal information published in FBI-related hack The materials include names, jobs and email addresses of more than 23,000 people, more than 1,000 of them attached to FBI and other law enforcement domains. 15/04/2019
Now playing Next USA The Lyrid meteor shower is back. Here's how to see April's shooting stars. A full moon could wash out this year's show, but skywatchers could still spot up to 20 meteors an hour. 14/04/2019
Now playing Next USA For 'Game of Thrones' superfans and devoted conspiracy theorists: Similar psychology, different outcomes. The psychology of groups and the internet's propensity to amplify outlandish content has created the kind of feedback loops in which bizarre theories flourish. 14/04/2019
Now playing Next USA Hypersonic air travel just took a step closer to reality New engine-cooling technology could help planes reach speeds in excess of 3,800 miles per hour. 13/04/2019
Now playing Next USA Black hole picture could unlock new era in astronomy Experts predict an avalanche of new discoveries about space. 12/04/2019
Now playing Next USA Foreign governments are fed up with social media — and threatening prison for tech employees While public outcry has provided the backdrop for increased government oversight, free-speech advocates are warning of heavy-handed censorship. 12/04/2019
Now playing Next USA SpaceX's Falcon Heavy rocket launches on first commercial flight The massive booster is carrying a Saudi telecommunications satellite into orbit. 12/04/2019