Ask Ethan: If Dark Matter Is Everywhere, Why Haven’t We Detected It In Our Solar System?

According to a large amount of evidence, the overwhelming majority of the Universe is made out of some mysterious type of mass that we’ve never directly measured. While protons, neutrons, and electrons — and for that matter, all the matter made out of particles from physics’ Standard Model — make up the planets, stars, and galaxies we find throughout the Universe, they compose only …

This Is Why Our Universe Didn’t Collapse Into A Black Hole

The Big Bang is one of the most counterintuitive ideas out there. If you think about taking all the matter and energy in the Universe, and starting it off in a tiny region of space, doesn’t it seem rather unlikely that it would expand at the exact rate needed to give us the Universe we see today? Wouldn’t it be …

‘Killer robots’: AI experts call for boycott over lab at South Korea university

Artificial intelligence researchers from nearly 30 countries are boycotting a South Korean university over concerns a new lab in partnership with a leading defence company could lead to “killer robots”. More than 50 leading academics signed the letter calling for a boycott of Korea Advanced Institute of Science and Technology (KAIST) and its partner, defence manufacturer Hanwha Systems. The researchers …

What Design Chiefs At Uber, IBM, And Microsoft Care About In 2018–And Why

It’s a common refrain among design leaders today: Design finally has buy-in. After years of being ignored, designers are getting the recognition and investment they craved, whether they’re working for a tech giant, a healthcare startup, or a white-shoe firm. But with acceptance come new challenges. To find out how design priorities have evolved and will continue to evolve in 2018 …

There are people who hear color—and they may have hyper-connected brains

reader comments 68 Share this story For some, musical notes conjure flashes of color, letters and numbers have their own particular hues, and certain sounds tickle. Researchers have reported these extraordinary cases of sensory mixing, called synesthesia—loosely translated to perceived together—for more than 130 years. But the molecular underpinnings of the vibrant experiences have been a complete mystery—until now. With …

A high fibre diet helps treat diabetes by changing gut bacteria

Feed your gut bugs By Jessica Hamzelou A diet rich in fruit and vegetables can help treat type 2 diabetes – and it seems to do this by changing the bacteria that live in a person’s gut. Liping Zhao at Shanghai Jiao Tong University in China and his colleagues compared the effects of two different diets in people with type …

Fake news travels six times faster than the truth on Twitter

News travels fast, especially when it’s wrongDong Wenjie/Getty By Chris Stokel-Walker An analysis of news stories tweeted by three million people between 2006 and 2017 shows that fake news spreads significantly more than the truth on social media. Sinan Aral and his colleagues at Massachusetts Institute of Technology (MIT) cross-checked the spread of 126,000 stories on Twitter against a database …

To Help Children Sleep, Go Dark

“We were trying to simulate what would go on at home when you put a child to bed,” said Dr. Monique LeBourgeois, an associate professor of integrative physiology at the University of Colorado, Boulder, and the director of the sleep and development lab; she was the senior author on the study. A child who is resisting being put to bed …

How to think in graphs: an illustrative introduction to Graph Theory and its applications

Hello, world! Let’s start with something that I used to see in graph theory books as “the origins of graph theory”, Seven Bridges of Königsberg (not really sure, but you can pronounce it as “qyonigsberg”). There were seven bridges in Kaliningrad, connecting two big islands surrounded by Pregolya river and two portions of mainlands divided by the same river. Our …

Supplements are a $30 billion racket—here’s what experts actually recommend

Enlarge / Choose wisely. reader comments 331 Share this story There are more than 90,000 vitamin and dietary supplement products sold in the US. They come in pills, powders, drinks, and bars. And they all anticipate some better versions of ourselves—selves with sturdier bones, slimmer waist lines, heftier muscles, happier intestines, better sex lives, and more potent noggins. They foretell …