Now playing Next USA 'Zoo hypothesis' may explain why we haven't seen any space aliens The hypothesis holds that they can see us, but we can't see them. 31/03/2019
Now playing Next France Legendary French film director Agnès Varda dies at the age of 90 Legendary French film director and artist Agnès Varda, who won an honorary Palme d'Or in 2015 and an honorary Oscar last year, has died at the age of 90 29/03/2019
Now playing Next USA Scientists find Civil War-era fortifications buried under Alcatraz prison New research is another example of how high-tech tools are transforming archaeology. 28/03/2019
Now playing Next USA Behind Instagram-friendly photos, an e-cigarette company collects valuable data The social media and data collection efforts by Blu come as e-cigarette companies face a growing scrutiny over their products' health impacts and popularity with young Americans. 27/03/2019
Now playing Next France Watch: French Spiderman climbs skyscraper to save crumbling Notre-Dame Robert was sponsored to the tune of €5,000. The Archbishop of Paris is on a drive to raise more than €100million to save Notre-Dame's crumbling gargoyles and gothic arches. 26/03/2019
Now playing Next USA Presidential candidates are eyeing big Super Tuesday prizes First Read is your briefing from "Meet the Press" and the NBC Political Unit on the day's most important political stories and why they matter. 22/03/2019
Now playing Next Business Monsanto found responsible for cancer case by US court Damages will be decided in the next phase of the trial. 20/03/2019
Now playing Next USA Consumers see wellness apps as a way to meditate. Investors see profits. Meditation and sleep apps have raised hundreds of millions of dollars in venture capital, hinting at the start of a new lifestyle business. 19/03/2019
Now playing Next Mozambique More than 1,000 feared dead after cyclone in Mozambique "It is a real disaster of great proportions," President Filipe Nyusi said. 19/03/2019
Now playing Next USA Uber to pay $20M settlement to drivers in California and Massachusetts The settlement is a fraction of what Uber could have been required to pay, a labor expert said, and its "business model of utilizing drivers" as contractors not employees stays intact. 13/03/2019
Now playing Next USA Supreme Court to hear unusual case about the 'f word' — but not the one you think Freedom of speech versus the government's right not to trademark what it finds "immoral" or "scandalous." 11/03/2019
Now playing Next USA Facebook's encryption plan could clash with law enforcement Every six minutes, on average, Facebook gets a request from a U.S. government body looking to get information about gangs, drug trafficking or other suspected crimes. 08/03/2019
Now playing Next USA At an Airbnb? You might be on camera Concern about Airbnb cameras may be out of proportion to their actual use but they starkly symbolize the loss of privacy that many people feel as security technology proliferates. 07/03/2019
Now playing Next Spain Why a Roma woman is standing for Spain's far-right Vox party Isabel Nieto says immigration is hurting the Roma people 02/03/2019
Now playing Next No Comment California floods Two communities in California were cut-off when a river burst its banks during heavy rain 01/03/2019
Now playing Next No Comment Flood waters wash over California's wine country Officials say flood waters have inundated a California town north of San Francisco and that the community is now only accessible by boats after a rain-swollen river overflowed its banks. 28/02/2019
Now playing Next USA Apple to lay off 190 employees from self-driving car division The affected jobs — most of which are engineering positions — are in facilities in Santa Clara and Sunnyvale, near the company's main headquarters in Cupertino. 27/02/2019