Antibiotic resistance is one of the biggest threats in medicine today. In this segment, Ira and guests talk about new approaches to developing antibiotics that could lead to new methods for treating drug-resistant diseases.

Researchers studying a sample of bacteria from water taken from a crack in a South African gold mine -- nearly 3 kilometers below the surface of the Earth -- have found that the ecosystem in the crack consists of only one organism.

Could a bacterium thought to be responsible for stomach ulcers help ward off childhood asthma?

In this segment, Ira and guests talk about bacteriophages -- bacteria-fighting viruses -- and their place in modern medicine.

Can a bacterial infection be a useful weapon in the fight against mosquito-borne illnesses?

Using copper for some surfaces might cut down on hospital-acquired infections.

What steps should planetary explorers take to prevent contaminating other planets with life from Earth?

A new study of the critters that live on the human body find that our skin is home to a much wider variety of bacteria than previously thought.

Just in time to beat the heat - we'll talk about the somewhat disturbing chemistry of swimming pool water.

Although it's been years since the first publications of signs of water on Mars, support for the idea of lots of liquid water in the planet's past keeps coming in.

Researchers report the discovery of a chemical that can encourage the formation of new neurons, at least in mice.

A fungus that targets basil plants, and other scourges of the summertime garden.

Researchers have inserted an artificially-produced genome into bacterial cells -- and the resulting cells appear to function normally.

We'll get the results of a recent student competition centered around the design and construction of living machines.

How well does science police itself? We'll talk what researchers do when they encounter misdeeds.

One of the biggest promises offered by research into human genetics is the prospect of 'personalized medicine.' But is personalized necessarily good?

White House Science Advisor John Holdren on science and spending.

Researchers edited the genomes of living bacteria to work with a new set of genetic instructions.

Nuclear experts discuss events at the Fukushima Daiichi facility.

Changes on the surface can change the way the planet spins.

NASA's Cassini spacecraft has observed methane rain and surface changes on one of Saturn's moons.

On Thursday, the Messenger probe will slow down enough to enter Mercury's orbit. Mission leader Sean Solomon joins us on Fri to talk about it.

A new book traces the early history of blood transfusions.

Researchers have developed a technique that takes brain mapping to a new level, allowing them to label individual neurons in the brain in different colors.