Despite making up most of the matter in the universe, dark matter doesn't interact with light. So how do astronomers know it is there? When you purchase through links on our site, we may earn an ...

There’s no easy formula for deciding when — or if— you should euthanize a beloved animal. Our dogs and cats aren’t just pets; for many they feel like dear friends and family so losing them can be ...

From using words to overthrowing regimes, shared awareness is necessary for people to coordinate. The cognitive scientist explains to Nature how it works. When Everyone Knows That Everyone Knows...: ...

To some degree, everyone has trouble acknowledging their limitations. That can come in the form of exaggerating your skills on the basketball court, suggesting you have read a novel that you really ...

The James Webb Space Telescope has spotted some of the earliest and most distant galaxies, but how can we be sure these early galaxies aren't closer and more recent? When you purchase through links on ...

If someone has blocked your number that means they do not want to hear from you. But how do you know if your number has been blocked or if for some reason your calls and messages are not going through ...

The year was 2011. Barack Obama was president, NASA’s space shuttles were retiring and Taylor Swift was on her second tour—and across a huge swath of the southeastern U.S., billions of tiny newborn ...

Ephraim* is working on his Ph.D. He has done what sounds to me like huge amounts of research, but he says he needs to do more. But his advisor has just told him that it’s time to stop researching and ...

Niro Feliciano is a mom, author and therapist with a master of science in social work. She’s a TODAY show contributor and author of the TODAY.com column “Is This Normal?” Over the years, I have gotten ...

The abortion pill is a nonsurgical option to end a pregnancy. Cramping and bleeding are signs that can mean the abortion was successful. Further tests can confirm whether the abortion pill worked. The ...

President Donald Trump has said US government will give Americans $2,000 checks in mid 2026. But Congress has to OK the ...

Your 401(k) doesn’t just disappear when you die. Here’s how it’s transferred, who gets it, the tax impact, and why ...