Geoscience News | Sci.News

Moon. Image credit: Gregory H. Revera / CC BY-SA 3.0.

Moon is Proto-Earth’s Mantle, Researchers Say

Sep 12, 2016 by News Staff

Measurements of potassium in lunar and terrestrial rocks have disproved the leading hypotheses for the origin of Earth’s sole natural satellite. Moon....

The ratio of volatile elements in Earth’s mantle suggests that virtually all of the planet’s life-giving carbon came from a collision with an embryonic planet about 100 million years after Earth formed. Image credit: A. Passwaters / Rice University / NASA / JPL-Caltech.

Proto-Earth Collided with Mercury-Like Planetary Embryo about 4.4 Billion Years Ago

Sep 6, 2016 by News Staff

In a new paper in the journal Nature Geoscience, researchers offer a new answer to a long-debated question: how did carbon-based life develop on Earth,...

A simulation of the Antarctic ozone hole, made from data taken on October 22, 2015. Image credit: NASA’s Goddard Space Flight Center.

Researchers Identify Clear Signs of Healing in Antarctic Ozone Layer

Jun 30, 2016 by News Staff

An international team of researchers led by Prof. Susan Solomon of the Massachusetts Institute of Technology (MIT) has identified the first ‘fingerprints...

Aalto University scientists find explanation for auroral sounds. Image credit: Unto Laine / Aalto University.

Scientists Find Explanation for Sounds of Northern Lights

Jun 28, 2016 by News Staff

The popping and crackling sounds associated with Aurora borealis (or the Northern Lights) are born when the related geomagnetic storm activates the charges...

This image of the continental United States at night is a composite assembled from data acquired by the Suomi NPP satellite in April and October 2012. The image was made possible by the satellite's ‘day-night band’ of the Visible Infrared Imaging Radiometer Suite (VIIRS), which detects light in a range of wavelengths from green to near-infrared and uses filtering techniques to observe dim signals such as city lights, gas flares, auroras, wildfires and reflected moonlight. Image credit: NASA Earth Observatory / NOAA NGDC.

Researchers Develop New Global Atlas of Light Pollution

Jun 10, 2016 by News Staff

More than 80 percent of the world and more than 99 percent of the U.S. and European populations live under light-polluted skies, according to a study and...

This map shows the location of the ice-free corridor and Paleo-Indian sites. Image credit: Roblespepe / CC BY-SA 3.0.

Researchers: ‘Ice-Free Corridor’ along Rocky Mountains Opened Up 13,000 Years Ago

Jun 7, 2016 by Enrico de Lazaro

Evidence from bison fossils has enabled researchers to shape a more accurate timeline for the so-called ‘ice-free corridor’ — a route for Pleistocene...

Artist’s concept of the active young Sun 4 billion years ago. Its energy may have aided in creating molecules in the atmosphere of early Earth that allowed it to warm up enough to incubate life. Image credit: NASA / GSFC / CIL.

Young Sun’s Superflares May Have Been Key to Life on Early Earth

May 25, 2016 by News Staff

Powerful coronal mass ejection events from the young Sun may have provided the crucial energy needed to warm early Earth, according to a team of researchers...

Ancient Earth. Image credit: Imperial College London.

Archean Earth’s Upper Atmosphere Was Oxygen-Rich, Scientists Discover

May 12, 2016 by News Staff

An international team of researchers from Australia and the United Kingdom has made a surprising discovery about the chemistry of Earth’s upper atmosphere...

Sahara, Libya. Image credit: Victor Korniyenko / CC BY-SA 3.0.

Dust from Sahara Makes Significant Impact on Caribbean Sea Ecosystem, Research Shows

May 10, 2016 by News Staff

Atmospherically transported dust from the Sahara Desert, the largest desert in the world, is bringing iron and other nutrients to underwater plants in...

An artist’s conception of the Antarctic subglacial environment. Image credit: Zina Deretsky / NSF.

What Lies Beneath Thick Antarctic Ice Sheet?

May 4, 2016 by News Staff

Three teams of scientists have taken a detailed look into the biogeochemistry, geophysics and geology of subglacial Lake Whillans, which lies 2,600 feet...

The Amazon River meets the Atlantic Ocean and creates a plume where freshwater and salt water mix. Image credit: Lance Willis.

Massive New Reef System Found at Amazon River Mouth

Apr 25, 2016 by News Staff

A new reef system has been found at the mouth of the Amazon River by an international group of researchers from Brazil and the United States. The Amazon...

Still from the Baltoro glacier animation. Image credit: Frank Paul / Cryosphere / USGS / NASA / CC-BY 3.0.

Animated Satellite Images Reveal Glaciers in Motion

Nov 26, 2015 by News Staff

Animations that compress more than two decades of satellite images into one second reveal the complex behavior and flow of glaciers in the Karakoram mountain...

The different volumes of water stored in the global water cycle. Global volumes of young (less then 100 years old), modern (less then 50 years old) and total groundwater to 2 km depth compared with other fresh water volumes stored in the atmosphere, in surface waters (that is, wetlands, rivers and lakes), within plants or in soils. Image credit: Tom Gleeson et al.

Scientists Produce First Data-Driven Estimate of Earth’s Supply of Groundwater

Nov 17, 2015 by Enrico de Lazaro

According to a new study in the journal Nature Geoscience, the total groundwater volume in the upper 2 km of the Earth’s landmass is approximately...

The inner core of our planet has an inner core of its own, with crystals aligned in a different direction. Image credit: Lachina Publishing Services.

Earth’s Inner Core ‘Only’ 1 – 1.5 Billion Year Old, New Study Says

Oct 8, 2015 by News Staff

The Earth’s deepest layer – the inner core – was formed between a billion and 1.5 billion years ago as it ‘froze’ from the surrounding molten...

The Cosgrove hotspot track. Image credit: Drew Whitehouse / NCI National Facility VizLab.

Cosgrove Track: Scientists Discover World’s Longest Chain of Continental Volcanoes

Sep 14, 2015 by News Staff

An international team of researchers has discovered the world’s longest known continental volcanic hotspot track — a 1,245 mile (2,000 km) long...

Jakobshavn glacier, also known as Sermeq Kujalleq and the Jakobshavn Isbræ, is a large glacier in West Greenland and is among the world’s most dynamic glaciers. Radar images from ESA’s Sentinel-1A captured the glacier before and after a massive calving event, which took place between 14 and 16 August 2015. The image composite includes different Sentinel-1A images from 27 July, and 13 and 19 August. The red, green and blue indicate the position of the calving front and other dynamic features on each respective date. Image credit: Copernicus Sentinel data /ESA.

Sentinel-1A Satellite Catches Jakobshavn Glacier Shedding Ice

Aug 24, 2015 by News Staff

Images from European Space Agency’s Sentinel-1A satellite show that Greenland’s Jakobshavn glacier, the fastest moving glacier in the world, shed a...

Formation of nucleobases in meteorite impact reactions. Image credit: Yoshihiro Furukawa.

Meteorite Impacts on Early Oceans May Have Created DNA Building Blocks

Aug 18, 2015 by News Staff

Meteorite impact reactions may have generated building blocks for life in the oceans of the prebiotic Earth, says a team of scientists led by Dr Yoshihiro...

Dr Yan Li and co-authors followed the journey of water through the Tarim Basin from the rivers at the edge of the valley to the desert aquifers under the basin. They found that as water moved through irrigated fields, the water gathered dissolved carbon and moved it deep underground. Image credit: Yan Li.

Desert Aquifers Could Hold More Carbon Dioxide than All Earth’s Plants

Jul 29, 2015 by News Staff

According to a new study published online in the journal Geophysical Research Letters, massive aquifers underneath deserts contain approximately one trillion...

A 3D relief map of the volcanic cluster on the sea floor. The sea floor is represented by a dark blue color and there are four calderas rising out of the sea floor in shades of green, yellow, orange and red. Image credit: University of New South Wales.

Ancient Underwater Volcanoes Discovered off Australia

Jul 14, 2015 by News Staff

A team of researchers aboard an ocean-going research vessel called RV Investigator has discovered a cluster of 50-million-year-old volcanoes off the coast...