Sep 02 Can you guess how many trees are on Earth? By Nsikan Akpan An international study led by Yale University provides a new estimate for the planet's number of trees. Continue reading
Sep 01 Scientists find a fat hormone toggles a runner's high By Nsikan Akpan Researchers at the University of Montreal have charted what happens to the brain to produce a runner’s high. Continue reading
Aug 31 WATCH: 26 years ago, Oliver Sacks wanted to be remembered like this By Colleen Shalby Not long after Oliver Sacks wrote the bestseller, “The Man Who Mistook His Wife for a Hat,” and just before his 1973 memoir “Awakenings” made its movie debut starring Robin Williams, “The MacNeil/Lehrer NewsHour” interviewed the famed neurologist. Continue reading
Aug 30 Looking for a way to store data for millennia? Try DNA. By Carey Reed, Andrew Mach The breakthrough could lead to the creation of digital archives, storing everything from ancient texts to Wikipedia pages in DNA form that could survive for hundreds of thousands of years without the loss of any data. Continue reading
Aug 27 The race for the unbreakable password is almost over By Nsikan Akpan Consumers may soon have access to quantum cryptography, a system for building secret codes that are so secure and difficult to intercept, some call it unhackable. Continue reading
Aug 26 Watch 5:58 Smart cane may help visually impaired navigate more terrain By PBS News Hour A high-tech upgrade to the traditional white cane may help blind and visually impaired people be more confident about navigating the world independently. The NewsHour's April Brown reports from France. Continue watching
Aug 24 How 'killing' Pluto redefined the solar system By Margaret Sessa-Hawkins Happy Pluto demotion day!… Continue reading
Aug 22 150 years on, meet the prolific pioneer who brought us the movie projector By Carey Reed Before the digital revolution hit the movie industry, the projector used in movie theaters was an evolution of the Phantoscope, developed by Charles Francis Jenkins, who was born nearly 150 years ago on Saturday. Continue reading
Aug 21 Satellite spots an unexpected result of Middle East conflict By Nsikan Akpan Satellite measurements suggest that economic and civil unrest cut air pollution in the Middle East. Continue reading
Aug 20 Watch 2:18 Will 3D printing in space allow us to build new worlds? By PBS News Hour So far, space travel is limited because we have to transport everything we need using rockets. But what if we could build whatever we needed? Jason Dunn, whose company built the first 3D printer to operate in space, shares his… Continue watching