Computer Science - Apr 18
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Earth Sciences - 18.04.2019 
Data mining digs up hidden clues to major California earthquake triggers
Comprehensive new earthquake catalog includes 10 times more quakes than previously identified, with a more detailed picture of stresses and structures in the earth A historic image of quake damage in Long Beach, California, 1933. CREDIT: W.L. Huber, USGS (Public domain) It's very difficult to unpack what triggers larger earthquakes because they are infrequent, but with this new information about a huge number of small earthquakes, we can see how stress evolves in fault systems.
Earth Sciences - Environment - 15.04.2019 
Historic logging site shows first human-caused bedrock erosion along an entire river
Geologic time is supposed to be slow, and the most solid object should be bedrock. But new University of Washington research upends both concepts: Effects of logging show that human activity can significantly erode bedrock, causing geology to fast forward. The study, published April 15 in the Proceedings of the National Academy of Sciences , focuses on the Teanaway River, a picturesque river in central Washington state.
Earth Sciences - 08.04.2019 
Melting Glaciers Causing Sea Levels to Rise at Ever Greater Rates
Melting ice sheets in Greenland and the Antarctic as well as ice melt from glaciers all over the world are causing sea levels to rise. Glaciers alone lost more than 9,000 billion tons of ice since 1961, raising water levels by 27 millimeters, an international research team under the lead of UZH have now found.
Astronomy / Space Science - Earth Sciences - 01.04.2019 
Mars Express matches methane spike measured by Curiosity
1 April 2019 A reanalysis of data collected by ESA's Mars Express during the first 20 months of NASA's Curiosity mission found one case of correlated methane detection, the first time an in-situ measurement has been independently confirmed from orbit. Reports of methane in the martian atmosphere have been intensely debated, with Mars Express contributing one of the first measurements from orbit in 2004, shortly after its arrival at the Red Planet.
Earth Sciences - Palaeontology - 29.03.2019 
North Dakota site shows wreckage from same object that killed the dinosaurs
Newly discovered evidence in North Dakota sheds new light on what happened when a giant meteorite struck planet Earth, 66 millions of years ago. On that day, violent ground shaking first raised giant waves in the waters of an inland sea. Then tiny beads began to fall, created from molten rock cooling at the edge of space to make glassy beads.
Earth Sciences - Palaeontology - 29.03.2019 
66 million-year-old deathbed linked to dinosaur-killing meteor
The beginning of the end started with violent shaking that raised giant waves in the waters of an inland sea in what is now North Dakota. Then, tiny glass beads began to fall like birdshot from the heavens. The rain of glass was so heavy it may have set fire to much of the vegetation on land. In the water, fish struggled to breathe as the beads clogged their gills.
Earth Sciences - 22.03.2019
Earth Sciences - 22.03.2019 
How fluid viscosity affects earthquake intensity
A young researcher at EPFL has demonstrated that the viscosity of fluids present in faults has a direct effect on the force of earthquakes. Fault zones play a key role in shaping the deformation of the Earth's crust. All of these zones contain fluids, which heavily influence how earthquakes propagate.
Earth Sciences - Computer Science / Telecom - 21.03.2019 
What can machine learning tell us about the solid Earth?
Scientists are training machine learning algorithms to help shed light on earthquake hazards, volcanic eruptions, groundwater flow and longstanding mysteries about what goes on beneath the Earth's surface. Scientists seeking to understand Earth's inner clockwork have deployed armies of sensors listening for signs of slips, rumbles, exhales and other disturbances emanating from the planet's deepest faults to its tallest volcanoes.
Earth Sciences - Environment - 14.03.2019 
Tectonics in the tropics trigger Earth’s ice ages
Major tectonic collisions near the equator have caused three ice ages in the last 540 million years. Over the last 540 million years, the Earth has weathered three major ice ages - periods during which global temperatures plummeted, producing extensive ice sheets and glaciers that have stretched beyond the polar caps.
Environment - Earth Sciences - 14.03.2019 
How marine snow cools the planet
Researchers in the School of Geosciences have mapped out how carbonate formations have helped regulate Earth's temperature over 120 million years. Dr Adriana Dutkiewicz warns global warming could release some of that carbon into the atmosphere. University of Sydney scientists have modelled how carbonate accumulation from 'marine snow' in oceans has absorbed carbon dioxide over millennia and been a key driver in keeping the planet cool for millions of years.
History / Archeology - Earth Sciences - 13.03.2019 
Prehistoric Britons rack up food miles for feasts near Stonehenge
Archaeologists have unearthed evidence of the earliest large-scale celebrations in Britain - with people and animals travelling hundreds of miles for prehistoric feasting rituals. The study, led by Dr Richard Madgwick of Cardiff University, is the most comprehensive to date and examined the bones of 131 pigs, the prime feasting animals, from four Late Neolithic (c.
Earth Sciences - 13.03.2019 
Researchers unravel mysteries of Earth’s inner core
Researchers from The Australian National University (ANU) are unlocking some of the secrets of the Earth's inner core by adapting and further developing a technique used in hospitals around the world. Tomography is the imaging process used in x-rays and ultrasounds, and involves waves passing through the body, before bouncing off body tissue and back to a receiver.
Environment - Earth Sciences - 07.03.2019 
Rescuing geologic and climate records
Postdoc Daniel Ibarra recently traveled to the Philippines to collect cave deposits that are considered key to understanding changes in climate during ancient times. Scattered throughout the Philippines are many caves containing precious geological formations that hold key information about past climate.
Earth Sciences - Environment - 06.03.2019 
Fossilised palm leaves give new insights into the geographical landscape of prehistoric central Tibet
A team of scientists from the UK and China have uncovered new evidence, using recently-discovered 25-million-year-old fossilised palm leaves, that Tibet's geography was not as 'high and dry' as previously thought. The new research, co-authored by academics from the University of Bristol's School of Geographical Sciences , suggests that central Tibet must have been no higher than 2.3km with large lakes fringed with subtropical vegetation and deep, hidden valleys.
Earth Sciences - Palaeontology - 06.03.2019 
Dinosaurs were thriving before asteroid strike that wiped them out
Dinosaurs were unaffected by long-term climate changes and flourished before their sudden demise by asteroid strike, new research, co-authored by the University of Bristol, has found. Scientists largely agree that an asteroid impact, possibly coupled with intense volcanic activity, wiped out the dinosaurs at the end of the Cretaceous period 66 million years ago.
Palaeontology - Earth Sciences - 06.03.2019 
Dinosaurs were thriving before asteroid strike that wiped them out
Dinosaurs were unaffected by long-term climate changes and flourished before their sudden demise by asteroid strike. Scientists largely agree that an asteroid impact, possibly coupled with intense volcanic activity, wiped out the dinosaurs at the end of the Cretaceous period 66 million years ago. Dinosaurs were likely not doomed to extinction until the end of the Cretaceous, when the asteroid hit.
Physics - Earth Sciences - 04.03.2019 
Mystery of green icebergs may soon be solved
Research led by the University of Washington proposes a new idea that may explain why some Antarctic icebergs are tinged emerald green rather than the normal blue, potentially solving a decades-long scientific mystery. The study is published in the Journal of Geophysical Research: Oceans, a journal of the American Geophysical Union.
Earth Sciences - 01.03.2019 
’Amazing snapshots’ plumb volcanic depths
Research shedding light on the internal “plumbing” of volcanoes may help scientists better understand volcanic eruptions and unrest. The University of Queensland-led study analysed crystals in Italy's famous Mount Etna to reveal how quickly magma moves to the surface. Dr Teresa Ubide , from UQ's School of Earth and Environmental Sciences , said the research would provide a better understanding of volcanic systems and improve frameworks for monitoring volcanoes.
Astronomy / Space Science - Earth Sciences - 28.02.2019 
First evidence of planet-wide groundwater system on Mars
Mars Express has revealed the first geological evidence of a system of ancient interconnected lakes that once lay deep beneath the Red Planet's surface, five of which may contain minerals crucial to life. Mars appears to be an arid world, but its surface shows compelling signs that large amounts of water once existed across the planet.
Earth Sciences
Results 1 - 20 of 1335.
Comprehensive new earthquake catalog includes 10 times more quakes than previously identified, with a more detailed picture of stresses and structures in the earth A historic image of quake damage in Long Beach, California, 1933. CREDIT: W.L. Huber, USGS (Public domain) It's very difficult to unpack what triggers larger earthquakes because they are infrequent, but with this new information about a huge number of small earthquakes, we can see how stress evolves in fault systems.
Geologic time is supposed to be slow, and the most solid object should be bedrock. But new University of Washington research upends both concepts: Effects of logging show that human activity can significantly erode bedrock, causing geology to fast forward. The study, published April 15 in the Proceedings of the National Academy of Sciences , focuses on the Teanaway River, a picturesque river in central Washington state.
Melting ice sheets in Greenland and the Antarctic as well as ice melt from glaciers all over the world are causing sea levels to rise. Glaciers alone lost more than 9,000 billion tons of ice since 1961, raising water levels by 27 millimeters, an international research team under the lead of UZH have now found.
1 April 2019 A reanalysis of data collected by ESA's Mars Express during the first 20 months of NASA's Curiosity mission found one case of correlated methane detection, the first time an in-situ measurement has been independently confirmed from orbit. Reports of methane in the martian atmosphere have been intensely debated, with Mars Express contributing one of the first measurements from orbit in 2004, shortly after its arrival at the Red Planet.
Newly discovered evidence in North Dakota sheds new light on what happened when a giant meteorite struck planet Earth, 66 millions of years ago. On that day, violent ground shaking first raised giant waves in the waters of an inland sea. Then tiny beads began to fall, created from molten rock cooling at the edge of space to make glassy beads.
The beginning of the end started with violent shaking that raised giant waves in the waters of an inland sea in what is now North Dakota. Then, tiny glass beads began to fall like birdshot from the heavens. The rain of glass was so heavy it may have set fire to much of the vegetation on land. In the water, fish struggled to breathe as the beads clogged their gills.
Volcano cliffs can affect monitoring data
New research led by the University of East Anglia (UEA) and co-authored by the University of Bristol reveals that sharp variations of the surface of volcanoes can affect data collected by monitoring equipment. The surfaces of many volcanoes feature steep walls or cliffs. These are often part of calderas - large craters left by a previous collapse - but can also be caused by the volcano ‘rifting' - or splitting - or sector collapse, when part of the side of the volcano slides away.
New research led by the University of East Anglia (UEA) and co-authored by the University of Bristol reveals that sharp variations of the surface of volcanoes can affect data collected by monitoring equipment. The surfaces of many volcanoes feature steep walls or cliffs. These are often part of calderas - large craters left by a previous collapse - but can also be caused by the volcano ‘rifting' - or splitting - or sector collapse, when part of the side of the volcano slides away.
A young researcher at EPFL has demonstrated that the viscosity of fluids present in faults has a direct effect on the force of earthquakes. Fault zones play a key role in shaping the deformation of the Earth's crust. All of these zones contain fluids, which heavily influence how earthquakes propagate.
Scientists are training machine learning algorithms to help shed light on earthquake hazards, volcanic eruptions, groundwater flow and longstanding mysteries about what goes on beneath the Earth's surface. Scientists seeking to understand Earth's inner clockwork have deployed armies of sensors listening for signs of slips, rumbles, exhales and other disturbances emanating from the planet's deepest faults to its tallest volcanoes.
Major tectonic collisions near the equator have caused three ice ages in the last 540 million years. Over the last 540 million years, the Earth has weathered three major ice ages - periods during which global temperatures plummeted, producing extensive ice sheets and glaciers that have stretched beyond the polar caps.
Researchers in the School of Geosciences have mapped out how carbonate formations have helped regulate Earth's temperature over 120 million years. Dr Adriana Dutkiewicz warns global warming could release some of that carbon into the atmosphere. University of Sydney scientists have modelled how carbonate accumulation from 'marine snow' in oceans has absorbed carbon dioxide over millennia and been a key driver in keeping the planet cool for millions of years.
Archaeologists have unearthed evidence of the earliest large-scale celebrations in Britain - with people and animals travelling hundreds of miles for prehistoric feasting rituals. The study, led by Dr Richard Madgwick of Cardiff University, is the most comprehensive to date and examined the bones of 131 pigs, the prime feasting animals, from four Late Neolithic (c.
Researchers from The Australian National University (ANU) are unlocking some of the secrets of the Earth's inner core by adapting and further developing a technique used in hospitals around the world. Tomography is the imaging process used in x-rays and ultrasounds, and involves waves passing through the body, before bouncing off body tissue and back to a receiver.
Postdoc Daniel Ibarra recently traveled to the Philippines to collect cave deposits that are considered key to understanding changes in climate during ancient times. Scattered throughout the Philippines are many caves containing precious geological formations that hold key information about past climate.
A team of scientists from the UK and China have uncovered new evidence, using recently-discovered 25-million-year-old fossilised palm leaves, that Tibet's geography was not as 'high and dry' as previously thought. The new research, co-authored by academics from the University of Bristol's School of Geographical Sciences , suggests that central Tibet must have been no higher than 2.3km with large lakes fringed with subtropical vegetation and deep, hidden valleys.
Dinosaurs were unaffected by long-term climate changes and flourished before their sudden demise by asteroid strike, new research, co-authored by the University of Bristol, has found. Scientists largely agree that an asteroid impact, possibly coupled with intense volcanic activity, wiped out the dinosaurs at the end of the Cretaceous period 66 million years ago.
Dinosaurs were unaffected by long-term climate changes and flourished before their sudden demise by asteroid strike. Scientists largely agree that an asteroid impact, possibly coupled with intense volcanic activity, wiped out the dinosaurs at the end of the Cretaceous period 66 million years ago. Dinosaurs were likely not doomed to extinction until the end of the Cretaceous, when the asteroid hit.
Research led by the University of Washington proposes a new idea that may explain why some Antarctic icebergs are tinged emerald green rather than the normal blue, potentially solving a decades-long scientific mystery. The study is published in the Journal of Geophysical Research: Oceans, a journal of the American Geophysical Union.
Research shedding light on the internal “plumbing” of volcanoes may help scientists better understand volcanic eruptions and unrest. The University of Queensland-led study analysed crystals in Italy's famous Mount Etna to reveal how quickly magma moves to the surface. Dr Teresa Ubide , from UQ's School of Earth and Environmental Sciences , said the research would provide a better understanding of volcanic systems and improve frameworks for monitoring volcanoes.
Mars Express has revealed the first geological evidence of a system of ancient interconnected lakes that once lay deep beneath the Red Planet's surface, five of which may contain minerals crucial to life. Mars appears to be an arid world, but its surface shows compelling signs that large amounts of water once existed across the planet.
Computer Science - Apr 18
Project Sidewalk helps users map accessibility around Seattle, other cities
Project Sidewalk helps users map accessibility around Seattle, other cities