What's Happening In Ideas

You can guess how someone's feeling just by looking at the colour of their face, according to new research

The 25 best places everyone should visit this year, according to travellers who have been there

Regular Americans who went undercover in jail for 2 months discovered a strict social hierarchy that governs everything from where you sleep to whether you get to shower

The 25 business schools in America that are most admired, most selective, and give graduates the biggest step up

The incredible life of Kate McWilliams, the easyJet pilot who became the world's youngest female captain at the age of 26

Feeling intense shame can turn some people into narcissists -- here's how

A dating coach says there are psychological reasons why we want what we can't have -- and it explains why we chase someone who pulls away

Here's which generation you're part of based on your birth year -- and why those distinctions exist

7 ways life is harder for millennials than it was for their parents

Nearly a decade after graduation, here are 5 things I did wrong at university -- and one I did right

These photos of prison cells around the world show how differently countries treat their criminals

8 things successful people don't do in their 30s

What it's like to graduate from McDonald's Hamburger University

NASA astronaut Scott Kelly on his poor grades in school, his biggest fear when he's away from Earth, and how SpaceX fits into the future of interplanetary travel

From mermaids to treasure hunters, inside 6 incredible jobs most people would never think of pursuing

What it's really like to be a NASA astronaut

6 ways to guarantee you won't get a raise

Inside the 27-year friendship of Bill Gates and Warren Buffett, who didn't even want to meet and now have each other on speed dial

I've read hundreds of LinkedIn messages while managing Business Insider's social accounts, and people often make the 7 same mistakes

PHOTOS: Inside Prospa's new Sydney offices, which feature themed lunches, massages, and crazy Friday night drinks