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Categories: Ecology: Extinction, Space: General

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Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Persistent hiccups in a far-off galaxy draw astronomers to new black hole behavior      (via sciencedaily.com)     Original source 

Astronomers have found that a previously quiet black hole, which sits at the center of a galaxy about 800 million light years away, has suddenly erupted, giving off plumes of gas every 8.5 days before settling back to its normal, quiet state.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Sea Life Environmental: General Geoscience: Environmental Issues
Published

Scientists warn: The grey seal hunt is too large      (via sciencedaily.com)     Original source 

Researchers warn that today's hunting quotas of about 3,000 animals pose a risk to the long-term survival of the grey seal in the Baltic Sea. The conclusions of this new study are based on statistics from 20th century seal hunting and predictions of future climate change.

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Nature Geoscience: Environmental Issues
Published

Looking to the past to prevent future extinction      (via sciencedaily.com)     Original source 

Anthropologists created a computational model to predict the likelihood of animal extinctions based on the complex interaction of hunting and environmental change.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Astronomers unveil strong magnetic fields spiraling at the edge of Milky Way's central black hole      (via sciencedaily.com)     Original source 

A new image from the Event Horizon Telescope (EHT) collaboration has uncovered strong and organized magnetic fields spiraling from the edge of the supermassive black hole Sagittarius A* (Sgr A*). Seen in polarized light for the first time, this new view of the monster lurking at the heart of the Milky Way Galaxy has revealed a magnetic field structure strikingly similar to that of the black hole at the center of the M87 galaxy, suggesting that strong magnetic fields may be common to all black holes.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Distant 'space snowman' unlocks mystery of how some dormant deep space objects become 'ice bombs'      (via sciencedaily.com)     Original source 

Researchers found that the double-lobed object, which is officially named Kuiper Belt Object 486958 Arrokoth and resembles a snowman, may have ancient ices stored deep within it from when the object first formed billions of years ago.

Biology: Biochemistry Biology: General Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature
Published

Biologists uncover new species of tiger beetle: Eunota houstoniana      (via sciencedaily.com)     Original source 

Evolutionary biologists have unearthed a new species of tiger beetle, deemed Eunota houstoniana, honoring the Houston region where it predominantly resides.

Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Turbulence within solar transients imaged      (via sciencedaily.com)     Original source 

Scientists captured images showing the development of turbulence as a Coronal Mass Ejection (CME) interacted with the ambient solar wind in the circumsolar space.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

'Cosmic cannibals' expel jets into space at 40 percent the speed of light      (via sciencedaily.com)     Original source 

Astronomers have measured the speed of fast-moving jets in space, crucial to star formation and the distribution of elements needed for life. The jets of matter, expelled by stars deemed 'cosmic cannibals', were measured to travel at over one-third of the speed of light -- thanks to a groundbreaking new experiment.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features
Published

Sleeping supermassive black holes awakened briefly by shredded stars      (via sciencedaily.com)     Original source 

Astronomers have concluded that an obscure class of galaxies known as Compact Symmetric Objects, or CSOs, are not young as previously thought but rather lead relatively short lives.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Tiniest 'starquake' ever detected      (via sciencedaily.com)     Original source 

An orange dwarf star has yielded the tiniest 'starquakes' ever recorded, measured by an international team of scientists.

Geoscience: Earth Science Offbeat: Earth and Climate Offbeat: General Offbeat: Space Physics: General Physics: Quantum Computing Physics: Quantum Physics Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

Scientists on the hunt for evidence of quantum gravity's existence at the South Pole      (via sciencedaily.com)     Original source 

An Antarctic large-scale experiment is striving to find out if gravity also exists at the quantum level. An extraordinary particle able to travel undisturbed through space seems to hold the answer.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Astronomers discover 49 new galaxies in under three hours      (via sciencedaily.com)     Original source 

New work aimed to study the star-forming gas in a single radio galaxy. Although the team didn't find any star-forming gas in the galaxy they were studying, they instead discovered other galaxies while inspecting the data. In total, the gas of 49 galaxies was detected.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

James Webb Space Telescope captures the end of planet formation      (via sciencedaily.com)     Original source 

How much time do planets have to form from a swirling disk of gas and dust around a star? A new study gives scientists a better idea of how our own solar system came to be.

Biology: General Ecology: Endangered Species Ecology: Extinction
Published

Bees need food up to a month earlier than provided by recommended pollinator plants      (via sciencedaily.com)     Original source 

Plant species which are recommended as 'pollinator friendly' in Europe begin flowering up to a month too late for bees, resulting in low colony survival and low production of queens. This research has quantified the decline in colony survival and queen production due to a shortage of early season food. Enhancing existing hedgerows with early blooming species has the potential to increase the probability that a bee colony survives from 35% to 100%.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Marine Biology: Microbiology Offbeat: General Offbeat: Plants and Animals Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Signs of life would be detectable in single ice grain emitted from extraterrestrial moons      (via sciencedaily.com)     Original source 

Could life be found in frozen sea spray from moons orbiting Saturn or Jupiter? New research finds that life can be detected in a single ice grain containing one bacterial cell or portions of a cell. The results suggest that if life similar to that on Earth exists on these planetary bodies, that this life should be detectable by instruments launching in the fall.

Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Two of the Milky Way's earliest building blocks identified      (via sciencedaily.com)     Original source 

Astronomers have identified what could be two of the Milky Way's earliest building blocks: Named 'Shakti' and 'Shiva', these appear to be the remnants of two galaxies that merged between 12 and 13 billion years ago with an early version of the Milky Way, contributing to our home galaxy's initial growth. The new find is the astronomical equivalent of archeologists identifying traces of an initial settlement that grew into a large present-day city.

Biology: Biochemistry Biology: General Ecology: Extinction Ecology: Invasive Species Environmental: Biodiversity
Published

Product that kills agricultural pests also deadly to native Pacific Northwest snail      (via sciencedaily.com)     Original source 

A product used to control pest slugs on farms in multiple countries is deadly to least one type of native woodland snail endemic to the Pacific Northwest, according to scientists who say more study is needed before the product gains approval in the United States.

Biology: Evolutionary Biology: General Biology: Marine Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Sea Life Paleontology: Fossils Paleontology: General
Published

Rays were more diverse 150 million years ago than previously thought      (via sciencedaily.com)     Original source 

Scientists have explored the puzzling world of rays that lived 150 million years ago and discovered a previously hidden diversity -- including a new ray species. This study significantly expands the understanding of these ancient cartilaginous fish and provides further insights into a past marine ecosystem.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Secrets of the Van Allen belt revealed in new study      (via sciencedaily.com)     Original source 

A challenge to space scientists to better understand our hazardous near-Earth space environment has been set in a new study.