Now playing Next USA Antarctic sea ice is shrinking rapidly after decades of growth. Scientists aren't sure why. Researchers have long struggled to explain the unusual behavior of ice floating in the ocean around the planet's southernmost continent. 01/07/2019
Now playing Next USA Ocasio-Cortez: Detained migrants being told to 'drink out of toilets' Members of the Congressional Hispanic Caucus and other Democrats described the conditions in two Texas immigration facilities as "indefensible." 01/07/2019
Now playing Next USA What exactly is a processed meat? And how much is safe to eat? Experts answer seven questions about processed meat, nitrates and healthier alternatives to your favorite deli meat. 01/07/2019
Now playing Next USA As Facebook cracks down on hate speech, it's also re-evaluating another policy: Nipples In early June, 125 people protested in the nude outside the New York City headquarters of Facebook and Instagram. It worked. 30/06/2019
Now playing Next United Kingdom Rapper Stormzy wears Banksy vest, delivers political Glastonbury show Stormzy's performance was hailed as a defining moment for British rap. 30/06/2019
Now playing Next USA Scientists are searching for a mirror universe. It could be sitting right in front of you. If the "mirrorverse" exists, upcoming experiments involving subatomic particles could reveal it. 30/06/2019
Now playing Next USA A strange, wavy jet stream is blasting Europe with heat. Scientists say this could be the 'new normal.' Global warming is crimping the ribbon of air that controls weather systems in the Northern Hemisphere, intensifying extreme weather around the world. 29/06/2019
Now playing Next USA Dozens of lakes discovered deep under colossal ice sheet With the help of ice-penetrating radar, researchers pinpoint 56 previously unknown lakes. 29/06/2019
Now playing Next USA A vast water reservoir has been discovered deep beneath the Atlantic Ocean If similar reservoirs exist in other coastal areas, they could be valuable resources for water-starved regions around the world. 28/06/2019
Now playing Next USA Total solar eclipse will darken skies over South America next week The eclipse won't be visible from North America, but the dramatic event will be broadcast live online. 27/06/2019
Now playing Next Living Insta-spiration: best summer beauty trends It’s time to try out one of the summer’s hottest trends spotted on Instagram. 27/06/2019
Now playing Next Living A countdown of female celebrities doing their bit for the environment Emma Watson, Jessica Alba and Gisele Bündchen…what do they all have in common? These empowering women have one goal in mind, to reduce our impact on the environment. 26/06/2019
Now playing Next USA No sign of alien life seen in new search, so the search is expanding The "Breakthrough Listen" initiative listened in on 1,300 star systems and found no sign of E.T. But the search is set to expand. 26/06/2019
Now playing Next France French restaurant wins 'world's best restaurant' award for first time The restaurant, Mirazur, on the French Riviera won the competition, which saw other European restaurants dominate the top 10 list. 26/06/2019
Now playing Next USA NASA's Curiosity Mars rover detects 'unusually high' levels of methane Is it evidence of life on the Red Planet? 25/06/2019
Now playing Next USA NASA to launch deep-space atomic clock that could transform space exploration The device is designed to make navigation to distant objects in space more autonomous. 24/06/2019
Now playing Next USA How floating solar farms could make fuel and help solve the climate crisis "Solar methanol islands" could curb our reliance on fossil fuels that belch harmful greenhouse gases into the atmosphere. 24/06/2019