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Israel has for the first time admitted it used controversial phosphorus shells during fighting against Hezbollah in Lebanon in July and August. Cabinet minister Jacob Edery confirmed the bombs were dropped "against military targets in open ground". Israel had previously said the weapons were used only to mark targets. Phosphorus weapons cause chemical burns and the Red Cross and human rights groups say they should be treated as...


 war Israel Lebanon phosphorus chemical weapon
The discovery of a bacterium that could substitute arsenic for phosphorus to survive is refuted by new research. Six elements are considered essential for life - oxygen, carbon, hydrogen, nitrogen, phosphorus and sulphur - so the announcement in 2010 implied one of biology's golden rules had been broken. The findings provoked an immediate backlash and now two new scientific papers suggest the bacterium needs phosphorus to grow after...


 bacteria arsenic phosphorus