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Categories: Ecology: Extinction, Space: Structures and Features

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

New image reveals secrets of planet birth      (via sciencedaily.com) 

Astronomers have gained new clues about how planets as massive as Jupiter could form. Researchers have detected large dusty clumps, close to a young star, that could collapse to create giant planets.

Biology: Marine Ecology: Extinction Ecology: Invasive Species Ecology: Research Ecology: Sea Life
Published

Scientists discover new isopod species in the Florida Keys      (via sciencedaily.com)     Original source 

Scientists have discovered a new species of marine cryptofauna in the Florida Keys. Cryptofauna are the tiny, hidden, organisms that make up the majority of biodiversity in the ocean. The tiny crustaceans are the first new gnathiid isopod to be discovered from the Floridian ecoregion in 100 years and are named after singer-songwriter Jimmy Buffett.

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

Webb detects water vapor in rocky planet-forming zone      (via sciencedaily.com) 

Water is essential for life as we know it. However, scientists debate how it reached the Earth and whether the same processes could seed rocky exoplanets orbiting distant stars. New insights may come from the planetary system PDS 70, located 370 light-years away. The star hosts both an inner disk and outer disk of gas and dust, separated by a 5 billion-mile-wide (8 billion kilometer) gap, and within that gap are two known gas-giant planets.

Space: Structures and Features
Published

To stick or to bounce: Size determines the stickiness of cosmic dust aggregates      (via sciencedaily.com)     Original source 

Current evidence suggests that microparticles of cosmic dust collide and stick together to form larger dust aggregates that may eventually combine and develop into planets. Numerical models that accurately characterize the conditions required for colliding microparticle aggregates to stick together, rather than bounce apart, are therefore paramount to understanding the evolution of planets. Recent modeling suggests that dust aggregates are less likely to stick together after a collision as the size of the aggregates increases.

Ecology: Endangered Species Ecology: Extinction Ecology: Sea Life
Published

Shark shock: Scientists discover filter-feeding basking sharks are warm-bodied like great whites      (via sciencedaily.com)     Original source 

Approximately 99.9% of fish and shark species are 'cold-blooded', meaning their body tissues generally match the temperature of the water they swim in -- but researchers have just discovered the mighty basking shark is a one-in-a-thousand exception. Instead, these sharks keep the core regions of their bodies warmer than the water like the most athletic swimmers in the sea such as great white sharks, mako sharks and tuna.

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

Galaxy J1135 reveals its water map      (via sciencedaily.com) 

Researchers look at water in galaxies, its distribution and in particular its changes of state from ice to vapor, as important markers indicating areas of increased energy, in which black holes and stars are formed. A new study has now revealed the distribution of water within the J1135 galaxy, which is 12 billion light years away and formed when the Universe was a 'teenager', 1.8 billion years after the Big Bang . This water map, with unprecedented resolution, is the first ever to be obtained for such a remote galaxy. The map can help scientists to understand the physical processes taking place within J1135 and shed light on the dynamics, still partially unclear, surrounding the formation of stars, black holes and galaxies themselves.

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

Does this exoplanet have a sibling sharing the same orbit?      (via sciencedaily.com) 

Astronomers have found the possible 'sibling' of a planet orbiting a distant star. The team has detected a cloud of debris that might be sharing this planet's orbit and which, they believe, could be the building blocks of a new planet or the remnants of one already formed. If confirmed, this discovery would be the strongest evidence yet that two exoplanets can share one orbit.

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

The puzzle of the galaxy with no dark matter      (via sciencedaily.com) 

New research has found the first evidence of a massive galaxy with no dark matter. The result is a challenge to the current standard model of cosmology.

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

Unusual white dwarf star is made of hydrogen on one side and helium on the other      (via sciencedaily.com)     Original source 

In a first for white dwarfs, the burnt-out cores of dead stars, astronomers have discovered that at least one member of this cosmic family is two faced. One side of the white dwarf is composed of hydrogen, while the other is made up of helium.

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

VERA unveils surroundings of rapidly growing black holes      (via sciencedaily.com) 

Astronomers used the state-of-the-art capability of VERA, a Japanese network of radio telescopes, to uncover valuable clues about how rapidly growing 'young' supermassive black holes form, grow, and possibly evolve into more powerful quasars.

Ecology: Extinction Ecology: General Ecology: Research Environmental: Ecosystems
Published

Some corals may survive climate change without paying a metabolic price      (via sciencedaily.com)     Original source 

If, as the saying goes, 'nothing in life is free,' then corals might pay a price for being resilient to climate change. Indeed, the prevailing belief among scientists has been that corals must suffer reduced growth or other tradeoffs when they partner with symbiotic algae that help them tolerate warmer water. Yet, new research demonstrates that certain corals can have their cake and eat it too, and as a result, these coral-symbiont partnerships may come to dominate reef ecosystems in a climate-changed future.

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

Astronomers discover striking evidence of 'unusual' stellar evolution      (via sciencedaily.com) 

Astronomers have found evidence that some stars boast unexpectedly strong surface magnetic fields, a discovery that challenges current models of how they evolve.

Ecology: Endangered Species Ecology: Extinction Ecology: General Environmental: Ecosystems Geoscience: Geology
Published

In Florida, endangered coral finds a way to blossom      (via sciencedaily.com)     Original source 

In a new study, researchers have found that the restoration efforts of the critically endangered species elkhorn coral depend largely on the animal's location, microbiome, and the right conditions to provide an abundance of food.

Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Invasive Species
Published

Form and function of island and mainland plants      (via sciencedaily.com)     Original source 

Oceanic islands provide useful models for ecology, biogeography and evolutionary research. Many ground-breaking findings -- including Darwin's theory of evolution -- have emerged from the study of species on islands and their interplay with their living and non-living environment. Now, an international research team has investigated the flora of the Canary Island of Tenerife. The results were surprising: the island's plant-life exhibits a remarkable diversity of forms. But the plants differ little from mainland plants in functional terms. However, unlike the flora of the mainland, the flora of Tenerife is dominated by slow-growing, woody shrubs with a 'low-risk' life strategy.

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

Hubble views a galactic monster      (via sciencedaily.com) 

The NASA/ESA Hubble Space Telescope has captured a monster in the making in this observation of the exceptional galaxy cluster eMACS J1353.7+4329, which lies about eight billion light-years from Earth in the constellation Canes Venatici. This collection of at least two galaxy clusters is in the process of merging together to create a cosmic monster, a single gargantuan cluster acting as a gravitational lens.

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

Stellar cradles and graves seen in farthest galaxy ever      (via sciencedaily.com)     Original source 

New observations have distinguished the sites of star formation and a possible site of star death from the surrounding nebula in a galaxy 13.2 billion light-years away. This is the farthest that such structures have been observed.

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

Astronomers identify the coldest star yet that emits radio waves      (via sciencedaily.com)     Original source 

Brown dwarf stars rarely emit radio waves. Here scientists have found the coldest star yet emitting at these long wave lengths. Understanding the science of 'ultracool brown dwarfs' will help deepen our knowledge of how stars evolve.

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

James Webb Telescope catches glimpse of possible first-ever 'dark stars'      (via sciencedaily.com) 

Three bright objects initially identified as galaxies in observations from the James Webb Space Telescope might actually represent an exotic new form of star. If confirmed, the discovery would also shed light on the nature of dark matter.

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

Rare, double-lobe nebula resembles overflowing cosmic 'jug'      (via sciencedaily.com)     Original source 

A billowing pair of nearly symmetrical loops of dust and gas mark the death throes of an ancient red-giant star. The resulting structure, said to resemble an old style of English jug, is a rarely seen bipolar reflection nebula. Evidence suggests that this object formed by the interactions between the dying red giant and a now-shredded companion star.