science

Health

The grip of HIV and tuberculosis in South Africa: Portraits of survivors and those who are gone

Three years ago, photographer Misha Friedman traveled to South Africa. He went to Gugulethu, a township near Cape Town, to photograph several women living with HIV and tuberculosis. This year, he went back to try and find the women again. Some have since died. Friedman has now produced a new portrait series — focusing in part on those who were left behind and on the ongoing HIV crisis in South Africa — a country with the highest infection rate in the world.

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Environment

Molten metals to green the grid

Living on Earth's Jeff Young visits the lab of a MIT scientist who got support to develop batteries made from molten metals. If it works, it could allow for massive storage of renewable energy for times when there's not enough sun or wind.

Environment

Nuclear shop of horrors

Nuclear waste is extremely difficult to clean up. But, as Emily Guerin reports, a new synthetic material can snap up radioactive ions like a Venus fly-trap devours insects. From Living on Earth.

Arts, Culture & Media

How sharks find their way

A tiny Pacific island shows up on our radar for today's Geo Quiz. It's a coral atoll located 5 degrees north of the equator which is home to Tiger Sharks that have a natural ability to navigate around their underwater environment.

Environment

Geo answer

Anchor Marco Werman speaks with paleontologist Paul Sereno from the University of Chicago about his discovery of a new kind of dinosaur fossil. The discovery took place in Africa's Sahara Desert -- which is the answer to today's Geo Quiz.

Environment

Geo answer

Today's answer is Carancas, the Peruvian town that's located near the spot where a mysterious meteorite fell from the sky a few months ago. The World's David Leveille explains why scientists are puzzled by the meteorite and the crater it left behind.

Environment

Geo answer

For today's Geo Quiz we were looking for the southernmost island of the North Land archipelago. The answer is Bolshevik Island. Anchor Marco Werman speaks with US Navy Captain Alfred McLaren, who conducted a secret mapping mission around the island in 1970. McLaren's new book is called, "Unknown Waters."

Environment

Asteroid from the past

Anchor Lisa Mullins explains how British scientists think they've figured out what happened to the ancient cities of Sodom and Gomorrah and it involves an ancient clay tablet and an asteroid.

Environment

Geo answer: Carn Menyn

Today's Geo Quiz asked you to name a spot in Wales where the massive "bluestones" that were used to build Stonehenge are believed to have originated. The answer is Carn Menyn, a grouping of craggy rocks in the Preseli Hills of Wales. Anchor Lisa Mullins speaks with Timothy Darvill, an archaeologist who began a new excavation at the Stonehenge site.

Environment

Bosnia war victim identified

Reporter Matt Sepic reports that a DNA sample from a Bosnian refugee in Missouri helped authorities identify the body of the man's father; he was killed during the war in Bosnia and was buried in a mass grave.

Environment

On a new track

Diane Toomey reports in a South Africa program that teaches women the skill of animal tracking -- traditionally a male profession.