Archive: 12/07/2011

Designer roots to counter drought

Recent discoveries by a University of Queensland agricultural scientist provide the basis for custom designing plant roots. Her discovery is already being used by plant breeders to develop drought-resistant sorghum crops.

dateJul 12, 2011 in Biotechnology
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Dark fireworks on the sun

On June 7, 2011, Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only "M" (for medium) on the Richter scale of solar flares, the blast at first appeared to ...

dateJul 12, 2011 in Space Exploration
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Punching holes in the sky

Scientists, photographers and amateur cloud watchers have been looking up with wonderment and puzzlement at "hole punch" clouds for decades. Giant, open spaces appear in otherwise continuous cloud cover, presenting beautiful ...

dateJul 12, 2011 in Earth Sciences
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Freefall -- aphids' survival strategy

As soon as aphids feeding on a plant sense the heat and humidity in a mammal's breath, they drop to safety before they are inadvertently ingested together with the plant the animal is feeding on. These findings by Moshe Gish ...

dateJul 12, 2011 in Plants & Animals
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