This artist's impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System. The double star Alpha Centauri AB also appears in the image to the upper-right of Proxima itself. Proxima b is a little more massive than the Earth and orbits in the habitable zone around Proxima Centauri, where the temperature is suitable for liquid water to exist on its surface.
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Genetic analysis uncovers 4 species of giraffe, not just 1

This image shows an Angolan giraffe herd in Damaraland, NW Namibia.Up until now, scientists had only recognized a single species of giraffe made up of several subspecies. But, according to the most inclusive genetic analysis of giraffe relationships to date,...

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Land-based food not nutritionally sufficient for wild polar bears, according to new study

A study, by San Diego Zoo Global conservationists, released this week (Sept. 12, 2016) is shedding new light on how scientists evaluate polar bear diet and weight loss during their...

The Great Elephant Census reports massive loss of African savannah elephants

This image shows the setting up of one of the survey aircraft.Paul G. Allen's Vulcan Inc. today announced the results of the $7 million, three-year Great Elephant Census (GEC - http://www.greatelephantcensus.com/), the first-ever pan-African survey of savanna elephants using...

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Study details Zika virus disrupting fetal brain development during pregnancy

This is a magnetic resonance image (MRI) of the fetal brain in a Zika virus infected primate. The large white region is abnormal and indicates an accumulation of fluid in the brain.For the first time, abnormal brain development following a Zika infection during pregnancy has been documented experimentally in the offspring of a non-human primate.

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NASA takes parting look at Hermine

NOAA's GOES-East satellite on Sept. 8 at 9:30 a.m. EDT showed Hermine's remnants as a swirl of clouds located off of Cape Cod, Mass. A line of clouds over northern New England from an oncoming cold front were located to the northwest of the remnants.Tropical Cyclone Hermine was just a swirl of clouds with no rainfall off the coast of southeastern Massachusetts on Thursday, Sept. 8. Just two days earlier, the GPM satellite saw...

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Ceres: The tiny world where volcanoes erupt ice

Volcanic dome Ahuna Mons rises above a foreground impact crater, as seen by NASA's Dawn spacecraft with no vertical exaggeration. Eruptions of salty, muddy water built the mountain by repeated eruptions, flows, and freezing. Streaks from falls of rocks and debris run down its flanks, while overhead views show fracturing across its summit.Ahuna Mons is a volcano that rises 13,000 feet high and spreads 11 miles wide at its base. This would be impressive for a volcano on Earth. But Ahuna Mons...

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One-tenth of the world's wilderness lost in 2 decades

A research team including Professor William Laurance from James Cook University has discovered there has been a catastrophic decline in global wilderness areas during the past 20 years.

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Electric fans may exacerbate heat issues for seniors, study finds

Dr. Craig Crandall, Professor of Internal Medicine.Using electric fans to relieve high levels of heat and humidity may, surprisingly, have the opposite effect for seniors, a study by UT Southwestern Medical Center heart specialists suggests.

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Stanford scientists combine satellite data and machine learning to map poverty

Stanford researchers combine high-resolution satellite imagery with powerful machine learning algorithms to predict poverty in Nigeria, Uganda, Tanzania, Rwanda and Malawi.One of the biggest challenges in providing relief to people living in poverty is locating them. The availability of accurate and reliable information on the location of impoverished zones is...

Stroke-like brain damage is reduced in mice injected with omega-3s

Researchers from Columbia University Medical Center (CUMC) found that omega-3 fatty acids reduced brain damage in a neonatal mouse model of stroke.

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UT study cracks coldest case: How the most famous human ancestor died

UT Austin professors John Kappelman and Richard Ketcham examine casts of Lucy while scanning the original fossil (background).Lucy, the most famous fossil of a human ancestor, probably died after falling from a tree, according to a study appearing in Nature led by researchers at The University of...

Neural stem cells in adult mice also vulnerable to Zika

This visual abstract shows the findings of Li et al., that peripheral ZIKV exposure in a mouse model can infect adult neural stem cells in the brain, leading to cell death and reduced proliferation. Thus, in addition to impacting fetal development, ZIKV infection may also have negative effects on the adult brain.Zika infection kills off neural stem cells in adult mice bred to be vulnerable to the virus, researchers at the Rockefeller University and the La Jolla Institute for Allergy and...

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Historical analysis examines sugar industry role in heart disease research

Using archival documents, a new report published online by JAMA Internal Medicine examines the sugar industry's role in coronary heart disease research and suggests the industry sponsored research to influence...

Countries across Africa, Asia-Pacific vulnerable to Zika virus, new study finds

Study author Dr. Kamran Khan of St. Michael's Hospital in Toronto said that identifying where and when populations would be most susceptible to local transmission of Zika virus could help inform public health decisions about the use of finite resources.Parts of Africa and the Asia-Pacific region may be vulnerable to outbreaks of the Zika virus, including some of the world's most populous countries and many with limited resources to...

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Female mosquitoes can transmit Zika virus to their eggs and offspring

New research from The University of Texas Medical Branch in Galveston has shown that female Aedes aegypti mosquitoes can pass the Zika virus to their eggs and offspring.

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NASA sees Hurricane Lester approaching Hawaiian Islands

Hurricane Lester appeared well-developed and had a clear eye in imagery from the MODIS instrument, or Moderate Resolution Imaging Spectroradiometer, aboard NASA's Aqua satellite. Aqua passed over Lester on Sept. 1 at 6:50 p.m. EDT (22:50 UTC).Hurricane Lester was nearing the Hawaiian Islands when NASA's Aqua satellite caught an image of the powerful and well-developed storm.

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Snails' speedy insulin

This is a <i>Conus geographus</i> hunting a fish.University of Utah researchers have found that the structure of an insulin molecule produced by predatory cone snails may be an improvement over current fast-acting therapeutic insulin. The finding suggests...

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Antibody discovery could help create improved flu vaccines

Dana-Farber Cancer Institute investigators, led by Dr. Wayne Marasco, report they have discovered a type of immune antibody that can rapidly evolve to neutralize a wide array of influenza virus strains -- including those the body hasn't yet encountered.Farber Cancer Institute investigators report they have discovered a type of immune antibody that can rapidly evolve to neutralize a wide array of influenza virus strains - including those the...

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Four out of 6 great apes one step away from extinction -- IUCN Red List

The Eastern Gorilla - the largest living primate - has been listed as Critically Endangered due to illegal hunting, according to the latest update of The IUCN Red List of...

University of Washington paleontologists discover major T. rex fossil

Paleontologists prepare to remove a <em>Tyrannosaurus</em> rex skull from a fossil dig site in northern Montana and transport it to the Burke Museum at the University of Washington.Paleontologists with the Burke Museum of Natural History and Culture and the University of Washington have discovered a Tyrannosaurus rex, including a very complete skull. The find, which paleontologists estimate...

Coffee drinking habits can be written in our DNA, study finds

Researchers have identified a gene that appears to curb coffee consumption.