Links 26/07/13

The glowing blue wave of death: '...an international team of researchers has found evidence of a “cascade” of death that spreads through an animal’s body through a special necrosis pathway, leaving a wake of dead cells in its procession, until the entire system collapses and expires. In the roundworm Caenorhabditis elegans, this wave of bodily destruction originates in the intestine and is accompanied by an intense burst of blue fluorescence when viewed with a camera equipped with a high brightness fluorescence filter cube, which allowed the researchers to visualize the worm’s destruction, the team reports in the journal PLoS Biology.'

'A new study, led by geologist Gregory J. Retallack of the University of Oregon, now has presented evidence for life on land that is four times as old—at 2.2 billion years ago and almost half way back to the inception of the planet.'


A gallery of images of ants at war.

Brock Davis's Cucumber Killer Whale and Historic Explosions in Cauliflower.

The International Space Station photographed in transit across the Sun and the Moon.

The Earth imaged from Saturn.

The Earth and the Moon imaged from Mercury.

A new study, led by geologist Gregory J. Retallack of the University of Oregon, now has presented evidence for life on land that is four times as old—at 2.2 billion years ago and almost half way back to the inception of the planet.
That evidence, which is detailed in the September issue of the journal Precambrian Research, involves fossils the size of match heads and connected into bunches by threads in the surface of an ancient soil from South Africa. They have been named Diskagma buttonii, meaning "disc-shaped fragments of Andy Button," but it is unsure what the fossils were, the authors say.


Read more at: http://phys.org/news/2013-07-greening-earth.html#jCp

A new study, led by geologist Gregory J. Retallack of the University of Oregon, now has presented evidence for life on land that is four times as old—at 2.2 billion years ago and almost half way back to the inception of the planet.
That evidence, which is detailed in the September issue of the journal Precambrian Research, involves fossils the size of match heads and connected into bunches by threads in the surface of an ancient soil from South Africa. They have been named Diskagma buttonii, meaning "disc-shaped fragments of Andy Button," but it is unsure what the fossils were, the authors say.


Read more at: http://phys.org/news/2013-07-greening-earth.html#jC

Since Erwin Schroedinger's famous 1935 cat thought experiment, physicists around the globe have tried to create large scale systems to test how the rules of quantum mechanics apply to everyday objects.

Read more at: http://phys.org/news/2013-07-big-schroedinger-cats-quantum-boundary.html#jCp

Since Erwin Schroedinger's famous 1935 cat thought experiment, physicists around the globe have tried to create large scale systems to test how the rules of quantum mechanics apply to everyday objects.

Read more at: http://phys.org/news/2013-07-big-schroedinger-cats-quantum-boundary.html#jCp

Since Erwin Schroedinger's famous 1935 cat thought experiment, physicists around the globe have tried to create large scale systems to test how the rules of quantum mechanics apply to everyday objects.

Read more at: http://phys.org/news/2013-07-big-schroedinger-cats-quantum-boundary.html#jCp