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It's no secret that this presidential campaign season has been tense, with disagreement and rancor even louder than usual.


Astronauts used the International Space Station's robotic arm to grapple the Cygnus cargo spacecraft early Sunday morning, starting the process of bringing more than 5,100 pounds of supplies and research equipment aboard. The cargo's experiments include one thing astronauts normally avoid: fire.

"The new experiments include studies on fire in space, the effect of lighting on sleep and daily rhythms, collection of health-related data, and a new way to measure neutrons," NASA says.

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Can Mental Illness Be Prevented In The Womb?

Oct 22, 2016

Every day in the United States, millions of expectant mothers take a prenatal vitamin on the advice of their doctor.

The counsel typically comes with physical health in mind: folic acid to help avoid fetal spinal cord problems; iodine to spur healthy brain development; calcium to be bound like molecular Legos into diminutive baby bones.

Instead of drifting gently onto Mars' surface, the Schiaparelli Mars lander hit the planet hard — and possibly exploded. That's the word from the European Space Agency, which says new images taken by NASA show the possible crash site.

The NASA images, taken on Oct. 20, show two recent changes to the landscape on Mars' surface — one dark blotch, and one white speck — which are being interpreted as Schiaparelli's parachute and its crash site.

Can A Place Still Be Home Even After Becoming Toxic?

Oct 21, 2016

Part 6 of the TED Radio Hour episode Toxic

About Holly Morris's TED Talk

Even thirty years after the devastating nuclear accident in Chernobyl, there are still people who call the place home. Filmmaker Holly Morris tells the stories of the mostly elderly women who decided to stay despite the toxicity.

About Holly Morris

How Does Our Brain Get Rid Of Toxins?

Oct 21, 2016

Part 4 of the TED Radio Hour episode Toxic

About Jeff Iliff's TED Talk

Neuroscientist Jeff Iliff talks about his research, which explores how the brain naturally flushes out toxins during sleep.

About Jeff Iliff

How Can Your Home Make You Sick?

Oct 21, 2016

Part 5 of the TED Radio Hour episode Toxic

About Rishi Manchanda's TED Talk

When Dr. Rishi Manchanda worked in a clinic in South Central Los Angeles, he saw that patients were getting sick because of toxic living conditions — so he tried a unique treatment approach.

About Rishi Manchanda

Part 3 of the TED Radio Hour episode Toxic

About Emily Penn's TED Talk

Ocean advocate Emily Penn has seen first hand how much plastic ends up in the oceans. She explains how the toxins from plastic makes their way into our food chain and how we might be able to stop it.

About Emily Penn

Part 2 of the TED Radio Hour episode Toxic

About Tyrone Hayes's TED Talk

Biologist Tyrone Hayes talks about the concerning effects of the herbicide atrazine, which is part of a group of chemicals that are found in everyday food and household products.

About Tyrone Hayes