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Ancient bacteria in Pilbara rock are merely volcanic minerals, scientists say.
A look back at some of our most popular articles.
Norman Swan gets to the bottom of the data.
Enzyme makes foreign red blood cells invisible to the immune system.
Can electric currents make us smarter and cure mental illness?
Microbes can work together with devastating effect.
We ask a scientist to describe their research and why it matters.
Two new devices improve the effectiveness of chemotherapy.
The job of eradicating Australia's feral cats is not straightforward.
Apart from making us look cute, the chin serves no obvious purpose.
The research on a potential treatment for heart disease which revealed a side effect that sparked a sexual health revolution
The immune system may be responsible for post traumatic stress disorder.
Burns could one day be treated with sheets of nanoneedles.
Intestinal bacteria can boost production of the happy brain chemical, serotonin.
A new therapy jump-starts male members.
We ask a scientist to describe his research and why it matters.
Rock star turned physicist Brian Cox turns his attention to the story of evolution.
The dottyback fish is the only known animal to change colour to look like its prey.
Mice with Alzheimer's have responded to ultrasound therapy.
Cautionary tale of a lost species.
Mudskippers may help explain how land-based animals learned to eat.
Peacocks use their tail feathers to emit a sound inaudible to humans.
The most read articles from the Cosmos news blog over the past week.
Chameleons employ a masterful trick of nanotechnology.
Flowers lace their nectar with caffeine because bees like it.