Green tea molecule could prevent heart attacks

Green tea could hold the key to preventing deaths from heart attacks and strokes caused by atherosclerosis, according to research funded by the British Heart Foundation and published in the Journal of Biological Chemistry.

Video: How do we know the age of the Earth?

The Earth is 4.565 billion years old, give or take a few million years. How do scientists know that? Since there's no "established in" plaque stuck in a cliff somewhere, geologists deduced the age of the Earth thanks to a ...

Longer-lived imaging agents could hasten Alzheimer's research

In the past few years, despite the best efforts of scientists and medical researchers, drug after drug designed to slow or stop the progression of Alzheimer's disease has failed in clinical trials. Some had no effect on the ...

'It's not like CSI': The science of the search for Richard III

DNA testing, environmental sampling and radiocarbon dating are some of the tests being undertaken to determine whether the skeleton found in Leicester was once Richard III - and there are also plans to do a facial reconstruction.

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