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Categories: Ecology: Research, Offbeat: Space

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Energy: Nuclear Offbeat: Space Physics: Quantum Physics Space: Astrophysics Space: Structures and Features
Published

Search for dark matter      (via sciencedaily.com)     Original source 

Scientists have applied a promising new method to search for dark matter particles in a particle accelerator. The method is based on the observation of the spin polarization of a particle beam in a storage ring COSY.

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

New study reveals evidence of diverse organic material on Mars      (via sciencedaily.com)     Original source 

Scientists gain vital insights into Mars' history and potential for supporting life.

Computer Science: Artificial Intelligence (AI) Engineering: Robotics Research Offbeat: Computers and Math Offbeat: Space Space: Exploration Space: The Solar System
Published

Training robots how to learn, make decisions on the fly      (via sciencedaily.com)     Original source 

Mars rovers have teams of human experts on Earth telling them what to do. But robots on lander missions to moons orbiting Saturn or Jupiter are too far away to receive timely commands from Earth. Researchers developed a novel learning-based method so robots on extraterrestrial bodies can make decisions on their own about where and how to scoop up terrain samples.

Offbeat: Space Space: Astrophysics Space: Cosmology Space: Exploration Space: Structures and Features
Published

Reinventing cosmology: New research puts age of universe at 26.7 -- not 13.7 -- billion years      (via sciencedaily.com)     Original source 

Our universe could be twice as old as current estimates, according to a new study that challenges the dominant cosmological model and sheds new light on the so-called 'impossible early galaxy problem.'

Offbeat: Space Space: Cosmology
Published

Quasar 'clocks' show Universe was five times slower soon after the Big Bang      (via sciencedaily.com)     Original source 

Quasars are the supermassive black holes at the centres of early galaxies. Scientists have unlocked their secrets to use them as 'clocks' to measure time near the beginning of the universe.

Offbeat: Space Space: Cosmology Space: Structures and Features
Published

First 'ghost particle' image of Milky Way      (via sciencedaily.com)     Original source 

Scientists have revealed a uniquely different image of our galaxy by determining the galactic origin of thousands of neutrinos -- invisible 'ghost particles' which exist in great quantities but normally pass straight through Earth undetected. The neutrino-based image of the Milky Way is the first of its kind: a galactic portrait made with particles of matter rather than electromagnetic energy.

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

Gullies on Mars could have been formed by recent periods of liquid meltwater, study suggests      (via sciencedaily.com)     Original source 

A study offers new insights into how water from melting ice could have played a recent role in the formation of ravine-like channels that cut down the sides of impact craters on Mars.

Offbeat: Space Space: Cosmology Space: Structures and Features
Published

Earliest strands of the cosmic web      (via sciencedaily.com)     Original source 

Galaxies are not scattered randomly across the universe. They gather together not only into clusters, but into vast interconnected filamentary structures with gigantic barren voids in between. This 'cosmic web' started out tenuous and became more distinct over time as gravity drew matter together.

Offbeat: Space Space: Structures and Features
Published

Unveiling the origins of merging black holes in galaxies like our own      (via sciencedaily.com)     Original source 

Black holes, some of the most captivating entities in the cosmos, possess an immense gravitational pull so strong that not even light can escape. The groundbreaking detection of gravitational waves in 2015, caused by the coalescence of two black holes, opened a new window into the universe. Since then, dozens of such observations have sparked the quest among astrophysicists to understand their astrophysical origins. Thanks to the POSYDON code's recent major advancements in simulating binary-star populations, a team of scientists predicted the existence of merging massive, 30 solar mass black hole binaries in Milky Way-like galaxies, challenging previous theories.

Offbeat: Space Space: Cosmology Space: Exploration Space: Structures and Features
Published

Gravitational waves from colossal black holes found using 'cosmic clocks'      (via sciencedaily.com)     Original source 

You can't see or feel it, but everything around you -- including your own body -- is slowly shrinking and expanding. It's the weird, spacetime-warping effect of gravitational waves passing through our galaxy. New results are the first evidence of the gravitational wave background -- a sort of soup of spacetime distortions pervading the entire universe and long predicted to exist by scientists.

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

Life after death: Astronomers find a planet that shouldn't exist      (via sciencedaily.com)     Original source 

The star would have inflated up to 1.5 times the planet's orbital distance -- engulfing the planet in the process -- before shrinking to its current size at only one-tenth of that distance.

Offbeat: General Offbeat: Space Space: Cosmology Space: Exploration Space: Structures and Features
Published

Starlight and the first black holes: researchers detect the host galaxies of quasars in the early universe      (via sciencedaily.com)     Original source 

For the first time, the James Webb Space Telescope has revealed starlight from two massive galaxies hosting actively growing black holes -- quasars -- seen less than a billion years after the Big Bang.

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

Magnetic bacteria point the way      (via sciencedaily.com)     Original source 

Magnetotactic bacteria, which can align with the Earth's magnetic field, have been discovered in a new location. Previously observed on land and in shallow water, analysis of a hydrothermal vent has proven that they can also survive deep under the ocean. The bacteria were able to exist in an environment that was not ideal for their typical needs. Magnetotactic bacteria are of interest not only for the role they play in Earth's ecosystem, but also in the search for extraterrestrial life. Evidence of their existence can remain in rocks for billions of years. Their magnetic inclinations can also provide a record of how magnetic poles have shifted over time. This new discovery brings hope to researchers that the magnetic bacteria might be found in yet more unexpected locations, on Earth and perhaps even on Mars or beyond.

Biology: Marine Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

New research finds that more than 90% of global aquaculture faces substantial risk from environmental change      (via sciencedaily.com)     Original source 

Many of the world's largest aquatic food producers are highly vulnerable to human-induced environmental change, with some of the highest-risk countries in Asia, Latin America and Africa demonstrating the lowest capacity for adaptation, a landmark study has shown.

Biology: General Biology: Zoology Ecology: Animals Ecology: General Ecology: Research Environmental: Ecosystems
Published

Research questions value of sagebrush control in conserving sage grouse      (via sciencedaily.com)     Original source 

Sagebrush reduction strategies, including mowing and herbicide application, are often employed to enhance habitat for the greater sage grouse and other sagebrush-dependent species.

Biology: Biochemistry Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Marine Biology: Microbiology Ecology: Extinction Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Geoscience: Earth Science Geoscience: Geography
Published

How coral reefs can survive climate change      (via sciencedaily.com)     Original source 

Similar to the expeditions of a hundred or two hundred years ago, the Tara Pacific expedition lasted over two years. The goal: to research the conditions for life and survival of corals. The ship crossed the entire Pacific Ocean, assembling the largest genetic inventory conducted in any marine system to date. The team's 70 scientists from eight countries took around 58,000 samples from the hundred coral reefs studied.

Biology: General Biology: Zoology Ecology: Animals Ecology: Extinction Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: General
Published

Human impact on wildlife even in protected areas      (via sciencedaily.com)     Original source 

The largest long-term standardized camera-trap survey to date finds that human activity impacts tropical mammals living in protected areas and sheds light on how different species are affected based on their habitat needs and anthropogenic stressors.

Offbeat: General Offbeat: Space Physics: General Physics: Quantum Physics Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Einstein and Euler put to the test at the edge of the Universe      (via sciencedaily.com)     Original source 

The cosmos is a unique laboratory for testing the laws of physics, in particular those of Euler and Einstein. Euler described the movements of celestial objects, while Einstein described the way in which celestial objects distort the Universe. Since the discovery of dark matter and the acceleration of the Universe's expansion, the validity of their equations has been put to the test: are they capable of explaining these mysterious phenomena? A team has developed the first method to find out. It considers a never-before-used measure: time distortion.

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

Molecular filament shielded young solar system from supernova      (via sciencedaily.com)     Original source 

Isotope ratios found in meteorites suggest that a supernova exploded nearby while the Sun and Solar System were still forming. But the blast wave from a supernova that close could have potentially destroyed the nascent Solar System. New calculations shows that a filament of molecular gas, which is the birth cocoon of the Solar System, aided the capture of the isotopes found in the meteorites, while acting as a buffer protecting the young Solar System from the nearby supernova blast.

Biology: Biochemistry Biology: General Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues
Published

Traditional methods cannot give us the insights we need to understand changing ecosystems      (via sciencedaily.com)     Original source 

If we want to face up to the challenges posed by climate change and other global environmental changes, we need to bring complexity science into the mix with ecology and biodiversity conservation.