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August 07, 2013
Researchers dismantle bacteria's war machinery
Lausanne, Switzerland (SPX) Aug 07, 2013
This is a veritable mechanics of aggression on the nanoscale. Certain bacteria, including Staphylococcus aureus, have the ability to deploy tiny darts. This biological weapon kills the host cell by piercing the membrane. Researchers at EPFL have dismantled, piece by piece, this intriguing little machine and found an assembly of proteins that, in unfolding at the right time, takes the form of a spur. Published in Nature Chemical Biology, this discovery offers new insight into the fight against path ... read more
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Discovery could lead to end of sunburn pain
The painful, red skin that comes from too much time in the sun is caused by a molecule abundant in the skin's epidermis, a new study shows. Blocking this molecule, called TRPV4, greatly protec ... more

Cool heads likely won't prevail in a hotter, wetter world
Should climate change trigger the upsurge in heat and rainfall that scientists predict, people may face a threat just as perilous and volatile as extreme weather - each other. Researchers from ... more

Climate change occurring 10 times faster than at any time in past 65 million years
The planet is undergoing one of the largest changes in climate since the dinosaurs went extinct. But what might be even more troubling for humans, plants and animals is the speed of the change. Stan ... more
24/7 News Coverage


Scientists uncover secrets of starfish's bizarre feeding mechanism
Scientists have identified a molecule that enables starfish to carry out one of the most remarkable forms of feeding in the natural world. A starfish feeds by first extending its stomach out o ... more


New Insight on Vulnerability of Public-Supply Wells to Contamination
Key factors have been identified that help determine the vulnerability of public-supply wells to contamination. A new USGS report describes these factors, providing insight into which contaminants i ... more

Ozone-protection treaty had climate benefits
The global treaty that headed off destruction of earth's protective ozone layer has also prevented major disruption of global rainfall patterns, even though that was not a motivation for the treaty, ... more

As climate, disease links become clearer, study highlights need to forecast future shifts
Climate change is affecting the spread of infectious diseases worldwide, according to an international team of leading disease ecologists, with serious impacts to human health and biodiversity conse ... more
24/7 Energy News Coverage
New discovery may help engineers design quieter jet airplanes

Atoms placed precisely in silicon can act as quantum simulator

Hybrid nanoantennas offer new platform for ultradense data recording

Could off-grid electricity systems accelerate energy access

One minus 1 does not always equal 0 in chemistry

Changing the world, 1 fridge at a time

Researchers create a first frequency comb of time-bin entangled qubits


Global investigation reveals true scale of ocean warming
Warming oceans are causing marine species to change breeding times and shift homes with expected substantial consequences for the broader marine landscape, according to a new global study. The ... more

Future warming: Issues of magnitude and pace
Researchers reviewed the likelihood of continued changes to the terrestrial climate, including an analysis of a collection of 27 climate models. If emissions of heat-trapping gases continue along th ... more

Seafood Menus Reflect Long-term Ocean Changes
The colorful restaurant menus that thousands of tourists bring home as souvenirs from Hawaii hold more than happy memories of island vacations; they contain valuable data that are helping a trio of ... more

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Climate strongly affects human conflict and violence worldwide
Shifts in climate are strongly linked to human violence around the world, with even relatively minor departures from normal temperature or rainfall substantially increasing the risk of conflict in a ... more

Looking to the past to predict the future of climate change
Climate changes how species interact with one another-and not just today. Scientists are studying trends from fossil records to understand how climate change impacted the world in the ancient past a ... more
Military Space News, Nuclear Weapons, Missile Defense
US Navy chief hopes for 'normalization' with Russia in Baltic

Britain procuring advanced Predator B aircraft

New raids hit Syria's Aleppo amid bids to end fighting

US in desperate bid to save Syria truce as Aleppo bombed

Iraq in political limbo after Green Zone storming

Iraqi forces retake road to isolated Anbar city

Navy deploys mission control system for unmanned helicopter


Diamonds and Gold Let Scientists Measure Temperate Inside Living Cells
How do you take the temperature of a cell? The familiar thermometer from a doctor's office is slightly too big considering the average human skin cell is only 30 millionths of a meter wide. Bu ... more

Scientists discover key to easing aquaculture's reliance on wild-caught fish
For the first time scientists have been able to develop a completely vegetarian diet that works for marine fish raised in aquaculture, the key to making aquaculture a sustainable industry as the wor ... more

Veolia says profits down to a trickle, shares sparkle
French utilities group Veolia Environnement reported Monday a six-month profits slump owing to provisions and warned that its activities in China were slowing, but its shares climbed as it held onto targets to cut costs and debt. ... more
Dark tourism brings light to disaster zones

Papua New Guinea opposition challenges asylum deal

Sandy's offspring: baby boom nine months after storm

New Ways To Create Gradients For Molecular Interactions

Alphasat deploys its giant reflector in orbit

Hardness in depth at nano scales

Seafood Menus Reflect Long-term Ocean Changes

Deep sea mining to transform Cook Islands' economy?

Veolia says profits down to a trickle, shares sparkle

New records for sea ice loss, greenhouse gas in 2012

Santa's workshop not flooded - but lots of melting in the Arctic

New knowledge about permafrost improving climate models


Tibetan exile burns himself to death in Nepal
A Tibetan exile died after setting himself ablaze at a Buddhist monument in Nepal Tuesday in an apparent protest against Chinese rule over Tibet, a police official said. ... more

World's first test-tube burger tasted in London
Scientists unveiled the world's first lab-grown beef burger in London on Monday, frying it in a little oil and butter and serving it to volunteers in what they hope is the start of a food revolution. ... more

Sudan floods kill 11, affect almost 100,000: UN
Heavy rains and flash floods in Khartoum and other parts of Sudan have killed 11 people and affected almost 100,000 in the past week, the United Nations said on Tuesday. ... more

Australia dissolves Parliament ahead of September election
A 19-gun salute Monday signaled Australia's House of Representatives was dissolved and the official start of electioneering began for polling day Sept. 7. ... more
Space News from
Nearby supernova 30M years ago equaled detonation of 100 million suns

SES to provide high-speed broadband connectivity to Express Wi-Fi in Africa

Russian Doll Galaxy Clusters Reveal Information About Dark Energy

First Light For ESO's VLT Four Laser Guide Star Facility

Space Microscope to test universality of freefall

IGC Team Will Continue on the Same Path with New Leader

James Webb Space Telescope's Golden Mirror Unveiled


New records for sea ice loss, greenhouse gas in 2012


Planned skyscrapers in Hollywood may have earthquake fault beneath


New Zealand takes charge of Fonterra milk scare response


Henriette becomes hurricane but moves away from Mexico


China young adults getting fatter: report


Fonterra CEO sorry for milk scare, denies cover-up


Turkey court sentences ex-army chief to life in mass coup trial


Deep sea mining to transform Cook Islands' economy?


Brazilian scientists to test AIDS vaccine on monkeys


Could planting trees in the desert mitigate climate change

Sediment trapped behind dams makes for methane hot spots

Team develops more accurate model of climate change impact on soil

Robots Strike Fear in the Hearts of Fish

Decoding material fluxes in the tropical ocean

Chinese distrust mounts after Fonterra milk scare

'Evolution will punish you if you're selfish and mean'

3D Sim Tech Helps Train Surgical Residents

New Zealand PM accuses milk scare firm of 'staggering' delay

Pakistan warns of more rain after flood deaths hit 45

Sri Lanka steps up security as protest toll rises

New Zealand's 'clean' green' image hurt by milk scare

Wall Street Journal's Chinese version blocked in China

Veolia says profits down to a trickle, shares sparkle

Shrinking glaciers won't affect South Asia water availability: study

Wasps being used to fight tree disease

Roots breakthrough for drought-resistant rice

Polish city braces for more farmers' protests over low prices

Turkey court to deliver ruling in high-profile coup trial

Egypt army chief met Islamists over crisis: spokesman

CU-Boulder team develops new water splitting technique that could produce hydrogen fuel

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