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Categories: Ecology: Extinction, Space: Astrophysics

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

Astronomers produce most sensitive radio image ever of ancient star cluster      (via sciencedaily.com)     Original source 

Astronomers have created the most sensitive radio image ever of a globular cluster, an ancient ball of tightly-packed stars.

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

Earth-sized planet discovered in 'our solar backyard'      (via sciencedaily.com)     Original source 

Astronomers have discovered a planet closer and younger than any other Earth-sized world yet identified. It's a remarkably hot world whose proximity to our own planet and to a star like our sun mark it as a unique opportunity to study how planets evolve.

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

NASA scientists discover a novel galactic 'fossil'      (via sciencedaily.com)     Original source 

Researchers at NASA's Goddard Space Flight Center have discovered X-ray activity that sheds light on the evolution of galaxies.

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

Close encounters of the supermassive black hole kind      (via sciencedaily.com)     Original source 

Astrophysicists have confirmed the accuracy of an analytical model that can unlock key information about supermassive black holes and the stars they engulf.

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

Our surprising magnetic galaxy      (via sciencedaily.com)     Original source 

A team of astronomers has created the first-ever map of magnetic field structures within a spiral arm of our Milky Way galaxy. Previous studies on galactic magnetic fields only gave a very general picture, but the new study reveals that magnetic fields in the spiral arms of our galaxy break away from this general picture significantly and are tilted away from the galactic average by a high degree. The findings suggest magnetic fields strongly impact star-forming regions which means they played a part in the creation of our own solar system.

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

Surprise gamma-ray feature beyond our galaxy      (via sciencedaily.com)     Original source 

Astronomers analyzing 13 years of data from NASA's Fermi Gamma-ray Space Telescope have found an unexpected and as yet unexplained feature outside of our galaxy.

Biology: Biochemistry Biology: General Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Biodiversity Environmental: General Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Thermal vision shows endangered numbats feel the heat of warming climate      (via sciencedaily.com)     Original source 

Research using thermal imaging of numbats in Western Australia has found that during hot weather the endangered animals are limited to as little as ten minutes of activity in the sun before they overheat to a body temperature of greater than 40 C.

Ecology: Extinction Ecology: Sea Life
Published

A global study reveals pathways to save threatened sharks, despite rising mortality trends      (via sciencedaily.com)     Original source 

Sharks have persisted as powerful ocean predators for more than 400 million years. They survived five mass extinctions, diversifying into an amazing variety of forms and lifestyles. But this ancient lineage is now among the world's most threatened species groups due to overexploitation in poorly regulated fisheries and the proliferation of wasteful finning practices.

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

NASA's Webb discovers dusty 'cat's tail' in Beta Pictoris System      (via sciencedaily.com)     Original source 

Beta Pictoris, a young planetary system located just 63 light-years away, continues to intrigue scientists even after decades of in-depth study. It possesses the first dust disk imaged around another star -- a disk of debris produced by collisions between asteroids, comets, and planetesimals. Observations from NASA's Hubble Space Telescope revealed a second debris disk in this system, inclined with respect to the outer disk, which was seen first. Now, a team of astronomers using NASA's James Webb Space Telescope to image the Beta Pictoris system (Beta Pic) has discovered a new, previously unseen structure.

Anthropology: General Archaeology: General Ecology: Extinction Environmental: Ecosystems Paleontology: Fossils Paleontology: General
Published

The extinction of the giant ape: Long-standing mystery solved      (via sciencedaily.com)     Original source 

The largest ever primate Gigantopithecus blacki went extinct when other Asian great apes were thriving, and its demise has long been a mystery. A massive regional study of 22 caves in southern China explores a species on the brink of extinction between 295,000 and 215,000 years ago. As the environment became more seasonal, forest plant communities changed Primates such as orangutans adapted their eating habits and behaviors in response but G. blacki showed signs of stress, struggled to adapt and their numbers dwindled.

Biology: Biochemistry Biology: Botany Biology: General Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Geography
Published

Scientists name the most common tropical tree species      (via sciencedaily.com)     Original source 

Researchers have found almost identical patterns of tree diversity across the world's tropical forests. The study of over one million trees across 1,568 locations found that just 2.2% of tree species make up 50% of the total number of trees in tropical forests across Africa, the Amazon, and Southeast Asia. Each continent consists of the same proportion of a few common species and many rare species.

Biology: Marine Ecology: Extinction Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems
Published

In hot water: Coral resilience in the face of climate change      (via sciencedaily.com)     Original source 

Researchers have been studying the effects of climate change on coral reefs. Monitoring two coral species off the coast of Hawaii, one team found that local adaptations in response to near-severe heat stress allowed certain populations to endure such events.

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

NASA's Webb finds signs of possible aurorae on isolated brown dwarf      (via sciencedaily.com)     Original source 

Astronomers have found a brown dwarf (an object more massive than Jupiter but smaller than a star) with infrared emission from methane, likely due to energy in its upper atmosphere. This is an unexpected discovery because the brown dwarf, W1935, is cold and lacks a host star; therefore, there is no obvious source for the upper atmosphere energy. The team speculates that the methane emission may be due to processes generating aurorae.

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

'Blob-like' home of farthest-known fast radio burst is collection of seven galaxies      (via sciencedaily.com)     Original source 

In summer 2022, astronomers detected the most powerful and most distant fast radio burst (FRB) ever observed. Now, astronomers have pinpointed the extraordinary object's birthplace -- and it's rather curious, indeed. Using images from NASA's Hubble Space Telescope, the researchers traced the FRB back to not one galaxy but a group of at least seven galaxies.

Archaeology: General Biology: Biochemistry Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems Environmental: General
Published

Nine new snail species discovered in Papua New Guinea, a biodiversity hot spot at risk      (via sciencedaily.com)     Original source 

A new study describes nine new species of carnivorous land snails, all of which are so small they could fit together on a U.S. nickel. They present a rare opportunity to study a group that in many other places is disappearing fast. Worldwide, mollusks account for more than 50% of all recorded extinctions since the year 1500, and many of these were land snails from Pacific islands.

Biology: General Biology: Zoology Ecology: Extinction Ecology: Nature
Published

Spanish butterflies better at regulating their body temperature than their British cousins      (via sciencedaily.com)     Original source 

Butterfly populations in Catalonia in northern Spain are better than their UK counterparts at regulating their body temperature by basking in the sunshine, but rising global temperatures due to climate change may put Spanish butterflies at greater risk of extinction.