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Categories: Ecology: General, Space: The Solar System

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

Could this copycat black hole be a new type of star?      (via sciencedaily.com)     Original source 

It looks like a black hole and bends light like a black hole, but it could actually be a new type of star. Though the mysterious object is a hypothetical mathematical construction, new simulations by Johns Hopkins researchers suggest there could be other celestial bodies in space hiding from even the best telescopes on Earth.

Biology: Botany Biology: General Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Paleontology: Climate
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The diversity of present tree species is shaped by climate change in the last 21,000 years      (via sciencedaily.com)     Original source 

A new global survey of 1000 forest areas shows how climate change since the peak of the last ice age has had a major impact on the diversity and distribution of tree species we see today. The results can help us predict how ecosystems will react to future changes, thus having an impact on conservation management around the globe.

Biology: Biochemistry Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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Metal-poor stars are more life-friendly      (via sciencedaily.com)     Original source 

A star's chemical composition strongly influences the ultraviolet radiation it emits into space and thus the conditions for the emergence of life in its neighborhood.

Biology: General Biology: Marine Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Landslides Geoscience: Oceanography Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
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Coastal species persist on high seas on floating plastic debris      (via sciencedaily.com)     Original source 

The high seas have been colonized by a surprising number of coastal marine invertebrate species, which can now survive and reproduce in the open ocean, contributing strongly to the floating community composition. Researchers found coastal species, representing diverse taxonomic groups and life history traits, in the eastern North Pacific Subtropical Gyre on over 70 percent of the plastic debris they examined. Further, the debris carried more coastal species than open ocean species.

Ecology: General Environmental: Ecosystems Geoscience: Geography
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Tastes differ -- even among North Atlantic killer whales      (via sciencedaily.com)     Original source 

Killer whales (also known as orcas) are intelligent predators. While it's known that killer whales in the Pacific Northwest exploit widely different food types, even within the same region, we know much less about the feeding habits of those found throughout the North Atlantic. Thanks to a new technique, it is now possible to quantify the proportion of different prey that killer whales in the North Atlantic are eating by studying the fatty acid patterns in their blubber. As climate change leads to a northward redistribution of killer whales, the results have implications not only for the health and survival of these killer whales, but also in terms of potential impacts on sensitive species within Arctic ecosystems.

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

Playing hide and seek with planets      (via sciencedaily.com)     Original source 

An international team of astronomers announced the first exoplanet discovered through a combined approach of direct imaging and precision measurements of a star's motion on the sky. This new method promises to improve the efficiency of exoplanet searches, paving the way for the discovery of an Earth twin.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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New exoplanet discovered      (via sciencedaily.com)     Original source 

Astronomers report the first exoplanet jointly discovered through direct imaging and precision astrometry, a new indirect method that identifies a planet by measuring the position of the star it orbits. Data from the Subaru Telescope in Hawai`i and space telescopes from the European Space Agency (ESA) were integral to the team's discovery.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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M87 in 3D: New view of galaxy helps pin down mass of the black hole at its core      (via sciencedaily.com)     Original source 

From Earth, giant elliptical galaxies resemble highly symmetric blobs, but what's their real 3D structure? Astronomers have assembled one of the first 3D views of a giant elliptical galaxy, M87, whose central supermassive black hole has already been imaged by the Event Horizon Telescope. M87 turns out to be triaxial, like a potato. The revised view provides a more precise measure of the mass of the central black hole: 5.37 billion solar masses.

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: Wildfires
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Wildfires and animal biodiversity      (via sciencedaily.com)     Original source 

Wildfires. Many see them as purely destructive forces, disasters that blaze through a landscape, charring everything in their paths. But a new study reminds us that wildfires are also generative forces, spurring biodiversity in their wakes.

Biology: General Biology: Zoology Ecology: Animals Ecology: General Ecology: Nature Ecology: Research Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues
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Timing of snowshoe hare winter color swap may leave them exposed in changing climate, study finds      (via sciencedaily.com)     Original source 

A new study, which used 44 years of data, shows that as the globe has warmed, altering the timing and amount of snow cover, snowshoe hares' winter transformation may be out of sync with the color of the background environment; this may actually put them at a greater disadvantage.

Biology: Biochemistry Biology: Botany Biology: Microbiology Ecology: Endangered Species Ecology: General Ecology: Nature Ecology: Research Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Landslides Geoscience: Severe Weather
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Increased droughts are disrupting carbon-capturing soil microbes, concerning ecologists      (via sciencedaily.com)     Original source 

Soil stores more carbon than plants and the atmosphere combined, and soil microbes are largely responsible for putting it there. However, the increasing frequency and severity of drought, such as those that have been impacting California, could disrupt this delicate ecosystem. Microbial ecologists warn that soil health and future greenhouse gas levels could be impacted if soil microbes adapt to drought faster than plants do.

Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features Space: The Solar System
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How did Earth get its water?      (via sciencedaily.com)     Original source 

Our planet's water could have originated from interactions between the hydrogen-rich atmospheres and magma oceans of the planetary embryos that comprised Earth's formative years.

Ecology: General Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology Offbeat: Earth and Climate Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
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Humans need Earth-like ecosystem for deep-space living      (via sciencedaily.com)     Original source 

Can humans endure long-term living in deep space? The answer is a lukewarm maybe, according to a new theory describing the complexity of maintaining gravity and oxygen, obtaining water, developing agriculture and handling waste far from Earth.

Chemistry: General Environmental: General Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology Geoscience: Severe Weather Offbeat: Earth and Climate Offbeat: General Offbeat: Space Space: Astrophysics Space: Exploration Space: General Space: The Solar System
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Lightning strike creates phosphorus material      (via sciencedaily.com)     Original source 

A lightning strike in New Port Richey, Florida, led to a chemical reaction creating a new material that is transitional between space minerals and minerals found on Earth. High-energy events, such as lightning, can cause unique chemical reactions. In this instance, the result is a new material -- one that is transitional between space minerals and minerals found on Earth.

Biology: Biochemistry Biology: General Ecology: Extinction Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues
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Scientists advocate for integration of biogeography and behavioral ecology to rapidly respond to biodiversity loss      (via sciencedaily.com)     Original source 

An interdisciplinary team of researchers is advocating for convergent research that integrates the fields of biogeography and behavioral ecology to more rapidly respond to challenges associated with climate change and biodiversity loss.

Biology: Biochemistry Biology: Botany Biology: Evolutionary Biology: General Ecology: Animals Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems
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In Florida study, nonnative leaf-litter ants are replacing native ants      (via sciencedaily.com)     Original source 

A new look at decades of data from museum collections and surveys of leaf-litter ants in Florida reveals a steady decline in native ants and simultaneous increase in nonnative ants -- even in protected natural areas of the state, researchers report.

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

NASA's Webb scores another ringed world with new image of Uranus      (via sciencedaily.com)     Original source 

Following in the footsteps of the Neptune image released in 2022, NASA's James Webb Space Telescope has taken a stunning image of the solar system's other ice giant, the planet Uranus. The new image features dramatic rings as well as bright features in the planet's atmosphere. The Webb data demonstrates the observatory's unprecedented sensitivity for the faintest dusty rings, which have only ever been imaged by two other facilities: the Voyager 2 spacecraft as it flew past the planet in 1986, and the Keck Observatory with advanced adaptive optics.

Biology: Biochemistry Biology: General Biology: Marine Ecology: Extinction Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems Geoscience: Severe Weather
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Coral skeletons influence reef recovery after bleaching      (via sciencedaily.com)     Original source 

Natural disasters can devastate a region, abruptly killing the species that form an ecosystem's structure. But how this transpires can influence recovery. While fires scorch the landscape to the ground, a heatwave leaves an army of wooden staves in its wake. Storm surges and coral bleaching do something similar underwater.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Offbeat: Space Space: Astrophysics Space: General Space: The Solar System
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How were amino acids, one of the key building blocks of life, formed before the origin of life on Earth?      (via sciencedaily.com)     Original source 

The amino acid abundances of two Ryugu particles were measured and compared with their rocky components. The results demonstrate the important role that water plays in the formation of amino acids on the giant precursors of asteroids like Ryugu. Our solar system formed from a molecular cloud, which was composed of gas and dust that was emitted into the interstellar medium (ISM), a vast space between stars. On collapse of the molecular cloud, the early sun was formed, with a large disk of gas and dust orbiting it. The dusty material collided to produce rocky material that would eventually grow in size to give large bodies called planetesimals.