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Phys.org / World population in 2100 could be 2 billion below UN projections

Earth will be home to 8.8 billion souls in 2100, two billion fewer than current UN projections, according to a major study published Wednesday that foresees new global power alignments shaped by declining fertility rates ...

1 hour ago in Other Sciences
Tech Xplore / New lithium battery charges faster, reduces risk of device explosions

Cell phone batteries often heat up and, at times, can burst into flames. In most cases, the culprit behind such incidents can be traced back to lithium batteries. Despite providing long-lasting electric currents that can ...

1 hour ago in Energy & Green Tech
Phys.org / Could recently spotted dim point sources explain the galactic center excess (GCE)?

Over the past decade or so, a number of astrophysics studies have detected an excess of gamma-ray radiation at the center of our galaxy. Despite the many attempts to understand this unexpected surplus of radiation, now known ...

15 hours ago in Astronomy & Space
Phys.org / Supercomputer reveals atmospheric impact of gigantic planetary collisions

The giant impacts that dominate late stages of planet formation have a wide range of consequences for young planets and their atmospheres, according to new research.

2 hours ago in Astronomy & Space
Medical Xpress / Experimental COVID-19 vaccine safe, generates immune response

An investigational vaccine, mRNA-1273, designed to protect against SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), was generally well tolerated and prompted neutralizing antibody activity in healthy ...

2 hours ago in Vaccination
Phys.org / Invasive alien species may soon cause dramatic global biodiversity loss

An increase of 20 to 30 per cent of invasive non-native (alien) species would lead to dramatic future biodiversity loss worldwide. This is the conclusion of a study by an international team of researchers led by Franz Essl ...

2 hours ago in Biology
Phys.org / Global methane emissions soar to record high

Global emissions of methane have reached the highest levels on record. Increases are being driven primarily by growth of emissions from coal mining, oil and natural gas production, cattle and sheep ranching, and landfills.

2 hours ago in Earth
Phys.org / Pocket-sized German satellite maker shoots for stars

Holding its own against aerospace giants like pan-European Airbus Space or French-Italian Thales Alenia, German minnow OHB has carved out a space as a national champion in satellite building.

1 hour ago in Astronomy & Space
Tech Xplore / A brain-inspired architecture for human gesture recognition

Researchers at Nanyang Technological University and University of Technology Sydney have recently developed a machine learning architecture that can recognize human gestures by analyzing images captured by stretchable strain ...

Phys.org / True colors: Scientists discuss evolution of white coloration of velvet ants

Driving across the arid American Southwest, one views miles upon miles of scrubby creosote bushes. Well-adapted to the hot, thirsty landscape, the evergreen shrub, also known as greasewood, chaparral and gobernadora, produces ...

7 hours ago in Biology
Tech Xplore / A transparent artificial muscle to enable camouflaging in soft robots

The ability to become transparent is a considerable evolutionary advantage, as it allows animals to blend in with their environment, avoid predators and mask their movements. Robots with similar capabilities could be of great ...

19 hours ago in Robotics
Phys.org / Blast sends star hurtling across the Milky Way

An exploding white dwarf star blasted itself out of its orbit with another star in a "partial supernova" and is now hurtling across our galaxy, according to a new study from the University of Warwick.

9 hours ago in Astronomy & Space