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Seismologists detect a sunken slab of ocean floor deep in the Earth
Halfway to the center of the Earth, at the boundary between the core and the mantle, lies a massive folded slab of rock that once formed the ocean floor and sank beneath North America some 50 million years ago. view more (2006-05-18)
Tonga quake not conducive to tsunami
Seismologists at Washington University in St. Louis and their colleagues in Australia, Japan and Tonga have determined why a large earthquake in Tonga did not cause a large tsunami. view more (2007-03-13)
X-rays use diamonds as a window to the center of the Earth
Diamonds from Brazil have provided the answers to a question that Earth scientists have been trying to understand for many years: how is oceanic crust that has been subducted deep into the Earth recycled back into volcanic rocks? view more (2008-08-13)
Complex structure observed in Tonga mantle wedge has implications for the evolution of volcanic arcs
The subduction zones where oceanic plates sink beneath the continents produce volcanic arcs such as those that make up the "rim of fire" around the Pacific Ocean. view more (2007-04-13)
Scientists reveal fate of Earth's oceans
Scientists at The University of Manchester have uncovered the first evidence of seawater deep inside the Earth shedding new light on the fate of the planet's oceans, according to research published in Nature. view more (2006-05-11)
Measurements link magma melting rate to tectonic plate subduction rate
Determining the origin and rate of magma production in subduction zone volcanoes is essential to understanding the formation of continental crust and the recycling of subducted materials back into Earth's mantle. view more (2007-11-09)
Sumatra megaquake defied theory
The risks of Sumatra-style mega-quakes around the world have been sorely misjudged, say earth scientists who are re-examining some of the pre-December 2004 assumptions scientists made about such rare events. view more (2006-03-28)
Naked turkey
WHAT`S the secret of great-tasting Christmas turkey? Let it get naked. Whipping the foil off a cooking turkey to allow the skin to brown induces a previously unrecognised process that concentrates the meat flavours at the surface. Chefs have always known that browning the bird with direct heat... view more (2001-12-19)
UCL scientists create first earthquakes in the laboratory
Scientists at UCL have recreated earthquakes in the laboratory for the first time allowing them to better understand the origin of the largest and most violent earthquakes. This is the first time scientists have been able to generate and observe deep and intermediate focus earthquakes in the... view more (2002-11-14)
'Finger rafting:' Ice sheets that mesh when they meet
A study reported in Physical Review Letters demonstrates how ice sheets sometimes interlace when they meet, rather than riding over or under each other, and discusses the implications for other phenomena from plate tectonics of the Earth's surface to the design of self-assembling nanostructures. view more (2007-03-02)
Nano-signals get a boost from magnetic spin waves
Researchers have figured out how nanoscale microwave transmitters gain greater signal power than the sum of their parts-a finding that will help in the design of nano-oscillator arrays for possible use as transmitters and receivers in cell phones, radar systems, or computer chips. view more (2006-09-01)
Volcanoes helped slow ocean warming trend, researchers find
Ocean temperatures might have risen even higher during the last century if it weren't for volcanoes that spewed ashes and aerosols into the upper atmosphere, researchers have found. The eruptions also offset a large percentage of sea level rise caused by human activity. view more (2006-02-10)
In Birds, Expecting to Mate Leads to Higher Fertilization Rates
From an evolutionary perspective, the primary task of an organism is to pass along its genes to future generations. Such genetic transmission is usually assumed to be instinctive. However, a new study shows that species also learn to adapt to their surroundings in order to increase their... view more (2007-10-05)
GPS technology aids earthquake research
Scientists' understanding of the movement of the Earth's crust is being helped by new observing facility which is taking measurements that may one day help predict earthquakes. Newcastle University's School of Civil Engineering and Geosciences has become only one of two UK centres feeding Global... view more (2002-11-08)
Builders of ancient tombs and temples followed Sun and stars
Two studies of ancient monuments in southwest Europe reveal the influence the Sun and stars had on their builders according to Dr Michael Hoskin, a historian of astronomy at Cambridge University. In the Archeoastronomy session of the RAS National Astronomy Meeting at the Open University, he will... view more (2004-03-23)
Oldest writing in the New World discovered in Veracruz, Mexico
New research published this week in Science details the discovery of a stone (serpentine) block in Veracruz, Mexico, containing a previously unknown system of writing, thought to be the earliest in the New World. view more (2006-09-15)
Mysterious rock markings discovery baffles archaeologists
THE discovery of a series of mysterious rock carvings has sparked a quest among experts to find out exactly what they are. Archaeologists from the University of Newcastle upon Tyne, who were alerted to the carvings by a local farm-hand, are baffled as to what they mean or who created them. Fellow... view more (2003-10-09)
Baked slug: New method to test fireproofing material
In a high-temperature blaze, how well does a fireproofing material shield a building's important steel structures from heat? Answering this question has been surprisingly difficult, but it is important information for builders selecting high-performance fire-resistive materials and for scientists... view more (2008-10-03)
Even without math, ancients engineered sophisticated machines
Move over, Archimedes. A researcher at Harvard University is finding that ancient Greek craftsmen were able to engineer sophisticated machines without necessarily understanding the mathematical theory behind their construction. view more (2007-10-03)
Earliest embryos ever discovered provide clues to dinosaur evolution, parenting
The embryos of a long-necked, herbivorous dinosaur are the earliest ever recorded for any terrestrial vertebrate and point to how primitive dinosaurs evolved into the largest animals ever to walk on earth. view more (2005-07-29)
Why a Rocky Mountain high?
A University of Utah study shows how various regions of North America are kept afloat by heat within Earth's rocky crust, and how much of the continent would sink beneath sea level if not for heat that makes rock buoyant. view more (2007-06-25)
Reversing and accelerating the speed of light
Physicist Costas Soukoulis and his research group at the U.S. Department of Energy's Ames Laboratory on the Iowa State University campus are having the time of their lives making light travel backwards at negative speeds that appear faster than the speed of light. view more (2006-07-24)
Stengthening the glow of nanotube luminescence
Nanotubes are the poster children of the nanotechnology revolution. These tiny carbon tubes - less than 1/50,000 the diameter of a human hair - possess novel properties that have researchers excitedly exploring dozens of potential applications ranging from transistors to space elevators. view more (2005-11-15)
Study outlines eruption at undersea volcano
An international team of scientists has presented its findings from the first observations of the eruption of a submarine volcano that in 2004 and 2005 spewed out plumes of sulfur-rich fluid and pulses of volcanic ash 550 meters below the ocean's surface near the Mariana Islands northwest of Guam. view more (2006-05-25)
2007 ozone hole 'smaller than usual'
The ozone hole over Antarctica has shrunk 30 percent as compared to last year's record size. According to measurements made by ESA's Envisat satellite, this year's ozone loss peaked at 27.7 million tonnes, compared to the 2006 record ozone loss of 40 million tonnes. view more (2007-10-04)
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