Researchers say they've discovered the potato's origins

The origin of potatoes has puzzled scientists for years, but researchers now say they've found an unlikely ancestor: tomatoes.

• Jul 31

Special cards await astronaut at ISS

SpaceX Falcon 9 is scheduled for liftoff Thursday, carrying a crew to the International Space Station. NASA astronaut Zena Cardman is the commander of the mission. She was supposed to launch last year, but issues with Boeing's Starliner changed those plans. Now set to blast off into space, Cardman has special notes from her father, sent before he died last August, waiting for her at the ISS.

• Jul 31
• 03:35

Here's what experts say about tsunami warnings in Hawaii, Japan and Russia

"It's not one that's going to cause mass devastation. But it will cause coastal flooding and it will cause damage and it does put lives at risk if people don't move to high ground," an oceanography professor says.

• Jul 30

Exploring embryo DNA modification and ethics

Eight babies in the UK were born using DNA from three people through an IVF technique that isn't legal in the U.S. NYU professor Arthur Caplan joins "CBS Mornings Plus" to explain the science and ethical concerns.

• Jul 25
• 05:32

Researchers concerned over rise in teens using AI for friendship

In a new survey, 31% of teens said their conversations with AI companions were "as satisfying or more satisfying" than talking with real friends.

• Jul 23

Humans beat AI at annual math Olympiad, but the machines are catching up

Humans beat AI programs made by Google and OpenAI at an international mathematics competition, but the technology shows some "very exciting" progress.

• Jul 22

Can laughter really improve your health

Dr. Jon LaPook joins comedy legend Alan Zweibel to explore how laughter can reduce stress and support heart health.

• Jul 22
• 04:44

The science of redesigning your personality

Writer Olga Khazan, a lifelong introvert obsessed with work, was unhappy with who she was, and so vowed to redesign her personality by living outside her comfort zone – a journey she documented in her new book, "Me, But Better."

• Jul 20

A new you: The science of redesigning your personality

Writer Olga Khazan was unhappy with the person she was – anxious, obsessed with work, unable to have fun, and constantly worried about things. And when therapy, medications and self-care failed to work for her, Khazan decided a more radical approach was needed: she vowed to redesign her personality. Khazan talks with "Sunday Morning" correspondent Susan Spencer about the surprising steps she took to live outside her comfort zone – a journey she documented in her new book, "Me, But Better: The Science and Promise of Personality Change." Spencer also talks with University of Kentucky professor Shannon Sauer-Zavala about how it's possible to change seemingly intractable personality traits.

• Jul 20
• 06:12

Book excerpt: "Me, But Better: The Science and Promise of Personality Change"

Atlantic staff writer Olga Khazan, a lifelong introvert, set out to change aspects of her personality she didn't like by forcing herself outside of her comfort zone. How about trying improv comedy?

• Jul 20

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