21/07/2011

Butterfly study sheds light on convergent evolution

For 150 years scientists have been trying to explain convergent evolution. One of the best-known examples of this is how poisonous butterflies from different species evolve to mimic each other's color patterns – in effect ...

Proteins enable essential enzyme to maintain its grip on DNA

Scientists have identified a family of proteins that close a critical gap in an enzyme that is essential to all life, allowing the enzyme to maintain its grip on DNA and start the activation of genes.

Researchers stumble on colorful discovery

Modified metals that change colour in the presence of particular gases could warn consumers if packaged food has been exposed to air or if there's a carbon monoxide leak at home. This finding could potentially influence the ...

Exoplanet aurora: An out-of-this-world sight

Earth's aurorae, or Northern and Southern Lights, provide a dazzling light show to people living in the polar regions. Shimmering curtains of green and red undulate across the sky like a living thing. New research shows that ...

A $1000 genome could be reached by 2013

(PhysOrg.com) -- A new report published in the journal Nature describes the new machine created by Jonathan Rothberg of Ion Torrent Systems which uses semiconductors to decode DNA and takes them one step closer to being able ...

New York Times suffers quarterly loss

The New York Times Company said Thursday it lost $120 million in the second quarter, as income from digital subscriptions failed to make up for a steep write-down of its print newspaper assets.

Russia declares 'era of Soyuz' after shuttle

Moscow on Thursday declared it was now "the era of the Soyuz" after the US shuttle's last flight left the Russian system as the sole means for delivering astronauts to the International Space Station.

Cigars and flowers as NASA savors shuttle's end

Cigars were passed around, flowers brightened desktops and pictures were snapped from all angles as NASA employees hugged, laughed and cried after the shuttle Atlantis landed one final time.

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