Now playing Next World News EPA's weaker car rules would kill more, heat earth beyond catastrophic threshold, study finds The government report projects that, under current policies, the Earth would warm by seven degrees Fahrenheit, well above the increase that scientists say the Earth must maintain to prevent catastrophic outcomes. 02/10/2018
Now playing Next World News 360 Video: Inside Boeing's Starliner space capsule Step inside a mock-up of the spacecraft that will ferry astronauts to the International Space Station. 01/10/2018
Now playing Next World News Governor signs bill to restore net neutrality in California Fierce legal battles loom as California moves to enforce Obama-era open internet policies struck down by the Trump administration. 01/10/2018
Now playing Next World News Elon Musk agrees to step down as Tesla chair and pay $20 million fine The billionaire and Tesla has reached a settlement with the Securities and Exchange Commission, the agency announced Saturday. 30/09/2018
Now playing Next World News This Japanese probe just took an epic hop on a strange little asteroid Scientists were surprised by the odd geometric form of asteroid Ryugu 29/09/2018
Now playing Next World News Retired mathematician says he's solved $1-million math problem Michael Atiyah says he has a proof for the Riemann Hypothesis, one of the most famous unsolved problems in mathematics. 28/09/2018
Now playing Next USA Elon Musk charged over tweets about taking Tesla private The Securities and Exchange Commission says Musk had "not even discussed, much less confirmed, key deal terms." 27/09/2018
Now playing Next World Less screen time for children is linked to better cognition, study says Less than two hours of recreational screen time for children is linked to better cognition - according to an observational study in The Lancet Child & Adolescent Health journal. 27/09/2018
Now playing Next World News Why Do Researchers Want Tissue From Aborted Fetuses? The political firestorm over Planned Parenthood "sting" video raises a separate issue: Why would anyone use tissue from an aborted fetus? 26/09/2018
Now playing Next World News Scientists find home of mysterious 'Oumuamua' space object The cigar-shaped comet caught scientists by surprise when it whizzed past the sun last year. 26/09/2018
Now playing Next World News On Reddit, Russian propagandists try new tricks The address-changing effort highlights how propagandists are employing new strategies to hide their origins as companies begin to crack down. 26/09/2018
Now playing Next World News Instagram co-founders' falling out with Zuckerberg led to departures, sources say "Kevin [Systrom] has been super-pissed-off at Mark," one high-level Facebook source said. 26/09/2018
Now playing Next World News Is it aliens? Scientists detect more mysterious radio signals from distant galaxy Some think the "fast radio bursts" could be evidence of an extraterrestrial civilization. 25/09/2018
Now playing Next World News 'Fortnite' craze pushes some parents to hire tutors — for kids and themselves "Some parents are trying to bond with their kids and have fun together," said one tutor. 24/09/2018
Now playing Next World News How SpaceX's huge spaceship has changed The Big Falcon Rocket system underwent a growth spurt since it was unveiled in 2017. 24/09/2018
Now playing Next World News Hydrogen-powered trains debut in Germany Zero-emission trains offer a green alternative to conventional diesel-powered locomotives. 23/09/2018
Now playing Next World News Amazon makes (micro)waves with Alexa-infused products Apple rolled out new iPhones at a flashy event, but Amazon's low key consumer products could herald a new era of voice technology. 23/09/2018
Now playing Next World News Should Pluto be a planet again? New study reignites contentious debate The rocky body at the outer edge of our solar system was downgraded to a dwarf planet in 2006. And that decision has been hotly debated ever since. 21/09/2018
Now playing Next World News Want a plastic straw in California? You'll have to specifically ask for one California Gov. Jerry Brown says plastics of call kids are 'chocking our planet.' 21/09/2018
Now playing Next World News Facebook to scale back campaign 'embeds' The social network had offered on-site ad support staff to help political campaigns, including Donald Trump's 2016 run. 21/09/2018