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Results 141 - 157 of 157.


Earth Sciences - Life Sciences - 01.03.2017
World's oldest fossils unearthed
World’s oldest fossils unearthed
Remains of microorganisms at least 3,770 million years old have been discovered by an international team led by UCL scientists, providing direct evidence of one of the oldest life forms on Earth. Tiny filaments and tubes formed by bacteria that lived on iron were found encased in quartz layers in the Nuvvuagittuq Supracrustal Belt (NSB), Quebec, Canada.

Earth Sciences - Environment - 28.02.2017
First direct measurements of Pacific seabed sediments reveal strong methane source
First direct measurements of Pacific seabed sediments reveal strong methane source
Researchers from Queen Mary University of London (QMUL) have discovered a major source of an important greenhouse gas in the Tropical Pacific Ocean for the first time. Methane is a powerful greenhouse gas, and a major contributor to increasing global temperatures. The largest pool of marine methane on Earth spans from the coast of Central America to Hawaii in the Tropical Pacific Ocean.

Earth Sciences - Astronomy / Space Science - 27.02.2017
Study opens new questions on how the atmosphere and oceans formed
Our findings make alternative theories for the origin of the atmosphere and oceans equally plausible, such as icy comets or meteorites bringing water to the Earth. A new study led by The Australian National University (ANU) has found seawater cycles throughout the Earth's interior down to 2,900km, much deeper than previously thought, reopening questions about how the atmosphere and oceans formed.

Astronomy / Space Science - Earth Sciences - 23.02.2017
Space dust deploy bubble parachutes on their fiery descent, scientists discover
Space dust deploy bubble parachutes on their fiery descent, scientists discover
Bubbles acting like parachutes are deployed by some cosmic dust particles on their entry into Earth's atmosphere, preventing them from burning up. Think of microscopic rice bubbles made of molten rock and you get the picture about what this cosmic dust looks like. Dr Matt Genge Department of Earth Science and Engineering This is the conclusion of a new study carried out by a researcher from Imperial College London.

Astronomy / Space Science - Earth Sciences - 22.02.2017
An exceptional system of exoplanets
An exceptional system of exoplanets
Seven temperate Earth-sized planets revolve around the star TRAPPIST-1. In addition, at least three of them harbor conditions compatible with the presence of liquid water on their surfaces.

Astronomy / Space Science - Earth Sciences - 22.02.2017
UW astronomer Eric Agol assists in new seven-planet NASA discovery using ‘distracted driving' technique
UW astronomer Eric Agol assists in new seven-planet NASA discovery using ‘distracted driving’ technique
University of Washington astronomy professor Eric Agol is part of the large team of researchers that has just announced confirmation of several Earth-sized, potentially habitable planets orbiting a star about 40 light-years (235 trillion miles) away. Astronomers with NASA today, Feb. 22, announced confirmation of the first known planetary system with seven Earth-sized planets orbiting a single star, called TRAPPIST-1, in the Aquarius constellation.

Earth Sciences - Environment - 17.02.2017
China’s severe weather patterns changing drastically since 1960
"A monsoon is one of the major drivers of severe weather because it affects the three necessary 'ingredients' for severe weather, which are wind shear, instability and triggering," said Fuqing Zhang, professor of meteorology and atmospheric science, Penn State. UNIVERSITY PARK, PA. In one of the most comprehensive studies on trends in local severe weather patterns to date, an international team of researchers found that the frequency of hail storms, thunderstorms and high wind events has decreased by nearly 50 percent on average throughout China since 1960.

Life Sciences - Earth Sciences - 15.02.2017
Fossil discovery rewrites understanding of reproductive evolution
Fossil discovery rewrites understanding of reproductive evolution
A remarkable 250 million-year-old “terrible-headed lizard? fossil found in China shows an embryo inside the mother - clear evidence for live birth. University of Queensland School of Earth and Environmental Sciences Head Professor Jonathan Aitchison said the Dinocephalosaurus fossil ­provided the first evidence for live birth in an animal group previously thought to exclusively lay eggs.

Life Sciences - Earth Sciences - 14.02.2017
Ancient fossil reveals first evidence of live birth in animals thought to lay eggs
Ancient fossil reveals first evidence of live birth in animals thought to lay eggs
The first ever evidence of live birth in an animal group previously thought to lay eggs exclusively has been discovered by an international team of scientists, including a palaeontologist from the University of Bristol. The remarkable 250 million-year-old fossil from China shows an embryo inside the mother.

Astronomy / Space Science - Earth Sciences - 14.02.2017
The heart of a far-off star beats for its planet
The heart of a far-off star beats for its planet
For the first time, astronomers from MIT and elsewhere have observed a star pulsing in response to its orbiting planet. The star, which goes by the name HAT-P-2, is about 400 light years from Earth and is circled by a gas giant measuring eight times the mass of Jupiter - one of the most massive exoplanets known today.

Earth Sciences - Event - 07.02.2017
The oxygen content increased when the Earth was covered in ice
The oxygen content increased when the Earth was covered in ice
In the beginning, planet Earth was a very inhospitable place with no oxygen and only single-celled bacteria as inhabitants. According to a new study, the oxygen content in the air began to increase about 2.4 billion years ago, at the same time as the global glaciation and when all continents were gathered in a single huge landmass, or supercontinent.

Astronomy / Space Science - Earth Sciences - 23.01.2017
Rare meteorites challenge our understanding of the solar system
Rare meteorites challenge our understanding of the solar system
Researchers have discovered minerals from 43 meteorites that landed on Earth 470 million years ago. More than half of the mineral grains are from meteorites completely unknown or very rare in today's meteorite flow. These findings mean that we will probably need to revise our current understanding of the history and development of the solar system.

Astronomy / Space Science - Earth Sciences - 23.01.2017
WATCH: Rare meteorites challenge our understanding of the solar system
WATCH: Rare meteorites challenge our understanding of the solar system
Researchers have discovered minerals from 43 meteorites that landed on Earth 470 million years ago. More than half of the mineral grains are from meteorites completely unknown or very rare in today's meteorite flow. These findings mean that we will probably need to revise our current understanding of the history and development of the solar system.

Earth Sciences - Administration - 17.01.2017
Heat from Earth’s core could be underlying force in plate tectonics
Researchers find the East Pacific Rise is dynamic as heat is transferred, showing that plate dynamics are driven significantly by additional force of heat drawn from Earth's core. For decades, scientists have theorized that the movement of Earth's tectonic plates is driven largely by negative buoyancy created as they cool.

Environment - Earth Sciences - 09.01.2017
Mapping the urban underground
Mapping the urban underground
An EPFL researcher has taken a methodology designed to improve underground urban planning around the world one step further.

Environment - Earth Sciences - 05.01.2017
Issues of indigenous peoples examined in current IK journal
UNIVERSITY PARK, Pa. The Interinstitutional Center for Indigenous Knowledge (ICIK) and the Penn State University Libraries - latest volume of its peer-reviewed, open access journal, IK: Other Ways of Knowing , examines current issues facing indigenous persons and peoples.

Earth Sciences - 02.01.2017
Blackouts and other disasters
Blackouts and other disasters
Timothy Prior and Florian Roth of the ‘risk and resilience' team at the Center for Security Studies (CSS) will be appearing as experts on today's SRF theme day on blackouts.

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