Expanding the code of life with new 'letters'

The DNA encoding all life on Earth is made of four building blocks called nucleotides, commonly known as "letters," that line up in pairs and twist into a double helix. Now, two groups of scientists are reporting ...

date5 hours ago in Biochemistry
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Image: XMM-Newton self-portraits with planet Earth

This series of images was taken 15 years ago, a couple of months after the launch of ESA's XMM-Newton space observatory. These unique views, showing parts of the spacecraft main body and solar wings, feature ...

date10 hours ago in Astronomy
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Nanosilver and the future of antibiotics

Precious metals like silver and gold have biomedical properties that have been used for centuries, but how do these materials effectively combat the likes of cancer and bacteria without contaminating the ...

date10 hours ago in Bio & Medicine
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A bubbly cosmic celebration

In the brightest region of the nebula RCW 34, gas is heated and expands through the surrounding cooler gas. Once the heated hydrogen reaches the borders of the gas cloud, it bursts outwards into the vacuum ...

date9 hours ago in Astronomy
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Protein scaffold

Right before a cell starts to divide to give birth to a daughter cell, its biochemical machinery unwinds the chromosomes and copies the millions of protein sequences comprising the cell's DNA, which is packaged ...

date5 hours ago in Cell & Microbiology
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Sharing corporate R&D on the internet

How much research and development information do Fortune Global 500 companies give away on their websites? That was the question a team from the University of Tunisia hoped to answer in assessing the openness of the commercial ...

date5 hours ago in Economics & Business
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