Now playing Next USA Twitter and Facebook say China-linked accounts sought to 'sow political discord' in Hong Kong Twitter said it pulled down 936 troll accounts, many of which pushed conspiracy theories about the protest groups, according to examples shared by the company. 19/08/2019
Now playing Next Israel Man vs mozzie: Tech firm develops laser to track and target mosquitoes The system follows the insects with a red laser beam and sends a text alert to householders, letting them know where the mosquito can be found. 19/08/2019
Now playing Next USA This huge telescope could lead us to alien life. First it has to get off the ground. Astronomers and protestors are at an impasse over a plan to build the Thirty Meter Telescope atop a dormant volcano on the Island of Hawaii. 18/08/2019
Now playing Next Mongolia Why electric cars aren’t as environmentally-friendly as you think There are ecological question marks over the components used in electric cars, including the battery and the use of rare-earth metals. 17/08/2019
Now playing Next USA Scientists ventured inside a rare 'fire cloud.' Here's what they found. New research on the clouds aims to improve forecasts of weather and air quality. 17/08/2019
Now playing Next USA US border computer outage causes airport chaos Thousands of travellers faced delays after a Customs and Border Protection systems failure prevented immigration officials from processing passengers. 16/08/2019
Now playing Next USA Russian hackers, town budgets, Windows updates: Officials grapple with realities of election security Inside a 21-seat conference room in Silver Spring, Maryland, a meeting of the Election Assistance Commission convened to talk about a software update touched on much more. 16/08/2019
Now playing Next USA It's official: July was hottest month on record Nine of the 10 hottest Julys on record have occurred since 2005. The last five have been the five hottest Julys ever. 15/08/2019
Now playing Next USA Space dust from ancient supernova found hiding in Antarctica The cosmic grains originated in a stellar explosion millions of years ago. 14/08/2019
Now playing Next Business Google, Facebook, Amazon to testify in U.S. against French digital tax Google, Facebook, Amazon to testify in U.S. against French digital tax 14/08/2019
Now playing Next USA What are earthquakes, and what causes them? The shaking tends to occur along zones of weakness in underground rock formations. 13/08/2019
Now playing Next France Man killed riding e-scooter on motorway near Paris The 30-year-old, who was not wearing a helmet, was struck from behind by a motorcycle on the A86 near Vélizy-Villacoublay, southwest of Paris. 11/08/2019
Now playing Next USA Galaxy Note 10: Five takeaways from Samsung's new smartphone launch Samsung unveiled its new smartphone on Wednesday, but what can we expect to see from it? 08/08/2019
Now playing Next World Lift off! Europe's latest satellite rockets into space The satellite will join a constellation that forms the European Data Relay System which enables users to observe the Earth almost in real-time. 07/08/2019
Now playing Next Green News Google pledges to make all hardware from recycled materials in 3 years The tech giant is taking a leap of faith into the world of sustainability, with three pledges to integrate ethics into the brand. 07/08/2019
Now playing Next USA This ice-making submarine would pop out bergs to replace dwindling sea ice Proposed vessel would ply polar waters as part of plan to curb climate change, but scientists have their doubts. 06/08/2019
Now playing Next USA Founder of 8chan wishes he could 'uncreate' forum popular with white supremacists Brennan no longer has control of 8chan, which has been run by U.S. Army veteran Jim Watkins since 2015. 06/08/2019
Now playing Next no comment Germany is playing host to the world's first hologram circus Horses, elephants and even giant goldfish are getting a breather at a circus in Germany after it began trialling holograms. 06/08/2019
Now playing Next USA WWII submarine found off Alaskan islands almost 80 years after it vanished The bow of the wrecked sub, which disappeared in 1942, was found 2,700 feet below the surface. 05/08/2019
Now playing Next USA New study shows our home galaxy is 'shaped like a Pringle' New research shows our home galaxy is warped and twisted. 05/08/2019