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Categories: Biology: Botany, Space: Astronomy

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Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Microbiology Ecology: Endangered Species Geoscience: Environmental Issues
Published

Researchers puncture 100-year-old theory of odd little 'water balloons'      (via sciencedaily.com)     Original source 

Quinoa and many other extremely resilient plants are covered with strange balloon-like 'bladders' that for 127 years were believed to be responsible for protecting them from drought and salt. Research results reveal this not to be the case. These so-called bladder cells serve a completely different though important function. The finding makes it likely that even more resilient quinoa plants will now be able to be bred, which could lead to the much wider cultivation of this sustainable crop worldwide.

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

NASA's Webb reveals new features in heart of Milky Way      (via sciencedaily.com)     Original source 

The latest image from NASA's James Webb Space Telescope shows a portion of the dense center of our galaxy in unprecedented detail, including never-before-seen features astronomers have yet to explain. The star-forming region, named Sagittarius C (Sgr C), is about 300 light-years from the Milky Way's central supermassive black hole, Sagittarius A*.

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

'Triple star' discovery could revolutionize understanding of stellar evolution      (via sciencedaily.com)     Original source 

A ground-breaking new discovery could transform the way astronomers understand some of the biggest and most common stars in the Universe.  Research by PhD student Jonathan Dodd and Professor René Oudmaijer, from the University's School of Physics and Astronomy, points to intriguing new evidence that massive Be stars -- until now mainly thought to exist in double stars -- could in fact be 'triples'.  The remarkable discovery could revolutionise our understanding of the objects -- a subset of B stars -- which are considered an important 'test bed' for developing theories on how stars evolve more generally. 

Biology: Biochemistry Biology: Botany Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Nature
Published

A stronger core for better plant breeding      (via sciencedaily.com)     Original source 

A new software tool with enhanced genome-sequencing powers has been developed, increasing the speed and accuracy at which researchers can improve plants through breeding.

Anthropology: Early Humans Anthropology: General Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Microbiology Ecology: Nature Ecology: Trees Paleontology: Fossils
Published

Looking for 'LUCA' and the timing of cellular evolution      (via sciencedaily.com)     Original source 

LUCA, the 'last universal common ancestor' of all living organisms, lived 4.32 to at most 4.52 billion years ago. What LUCA looked like is unknown, but it must have been a cell with among others ribosomal proteins and an ATP synthase.

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

Hydrogen detected in lunar samples, points to resource availability for space exploration      (via sciencedaily.com)     Original source 

Researchers have discovered solar-wind hydrogen in lunar samples, which indicates that water on the surface of the Moon may provide a vital resource for future lunar bases and longer-range space exploration.

Biology: Botany Ecology: Nature Ecology: Trees Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues
Published

Forest modeling shows which harvest rotations lead to maximum carbon sequestration      (via sciencedaily.com)     Original source 

Forest modeling shows that a site's productivity -- an indicator of how fast trees grow and how much biomass they accumulate -- is the main factor that determines which time period between timber harvests allows for maximum above-ground carbon sequestration.

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

Dwarf galaxies use 10-million-year quiet period to churn out stars      (via sciencedaily.com)     Original source 

If you look at massive galaxies teeming with stars, you might be forgiven in thinking they are star factories, churning out brilliant balls of gas. But actually, less evolved dwarf galaxies have bigger regions of star factories, with higher rates of star formation. Now, University of Michigan researchers have discovered the reason underlying this: These galaxies enjoy a 10-million-year delay in blowing out the gas cluttering up their environments. Star-forming regions are able to hang on to their gas and dust, allowing more stars to coalesce and evolve. In these relatively pristine dwarf galaxies, massive stars--stars about 20 to 200 times the mass of our sun--collapse into black holes instead of exploding as supernovae. But in more evolved, polluted galaxies, like our Milky Way, they are more likely to explode, thereby generating a collective superwind. Gas and dust get blasted out of the galaxy, and star formation quickly stops.   

Biology: Botany
Published

Consumers, florists differ on floral arrangements      (via sciencedaily.com)     Original source 

Consumers don't necessarily pay attention to florists' arrangement design elements. And consumer love roses -- a lot.

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

Why the vast supergalactic plane is teeming with only one type of galaxy      (via sciencedaily.com)     Original source 

Our own Milky Way galaxy is part of a much larger formation, the local Supercluster structure, which contains several massive galaxy clusters and thousands of individual galaxies. Due to its pancake-like shape, which measures almost a billion light years across, it is also referred to as the Supergalactic Plane. Why is the vast supergalactic plane teeming with only one type of galaxies? This old cosmic puzzle may now have been solved.

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

'Teenage galaxies' are unusually hot, glowing with unexpected elements      (via sciencedaily.com)     Original source 

Using the James Webb Space Telescope, CECILIA Survey receives first data from galaxies forming two-to-three billion years after the Big Bang. By examining light from these 33 galaxies, researchers discovered their elemental composition and temperature. The ultra-deep spectrum revealed eight distinct elements: Hydrogen, helium, nitrogen, oxygen, silicon, sulfur, argon and nickel. The teenage galaxies also were extremely hot, reaching temperatures higher than 13,350 degrees Celsius.

Biology: Biochemistry Biology: Botany Ecology: Endangered Species Ecology: Nature Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

New research suggests plants might be able to absorb more CO2 from human activities than previously expected      (via sciencedaily.com)     Original source 

New research  paints an uncharacteristically upbeat picture for the planet. This is because more realistic ecological modelling suggests the world's plants may be able to take up more atmospheric CO2 from human activities than previously predicted.

Biology: Botany Biology: General Biology: Microbiology Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Research Paleontology: Climate Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
Published

Plants that survived dinosaur extinction pulled nitrogen from air      (via sciencedaily.com)     Original source 

Ancient cycad lineages that survived the extinction of the dinosaurs may have done so by relying on symbiotic bacteria in their roots to fix atmospheric nitrogen. The finding came from an effort to understand ancient atmospheres, but became an insight into plant evolution instead.

Biology: Biochemistry Biology: Botany Ecology: Endangered Species Offbeat: General Offbeat: Plants and Animals
Published

Hemp cannabinoids may have evolved to deter insect pests      (via sciencedaily.com)     Original source 

Cannabinoids, naturally occurring compounds found in hemp plants, may have evolved to deter pests from chewing on them, according to new research that showed higher cannabinoid concentrations in hemp leaves led to proportionately less damage from insect larvae.

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

An old star with ring-like structure: ALMA demonstrates highest resolution yet      (via sciencedaily.com)     Original source 

ALMA (Atacama Large Millimeter/submillimeter Array) has demonstrated the highest resolution yet with observations of an old star. The observations show that the star is surrounded by a ring-like structure of gas and that gas from the star is escaping to the surrounding space. Future observations with the newly demonstrated high resolution are expected to elucidate, not only the end of a star's life, but also the beginning, when planets are still forming.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Ecology: Endangered Species
Published

Genetic discovery promises high-iron vegetables and cereals      (via sciencedaily.com)     Original source 

A genetic breakthrough has opened new opportunities for iron-fortified vegetables and cereal crops to help address the global health issue of anemia.

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

With unprecedented flares, stellar corpse shows signs of life      (via sciencedaily.com)     Original source 

After a distant star's explosive death, an active stellar corpse was the likely source of repeated energetic flares observed over several months -- a phenomenon astronomers had never seen before, astronomers report.

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

James Webb Space Telescope detects water vapor, sulfur dioxide and sand clouds in the atmosphere of a nearby exoplanet      (via sciencedaily.com)     Original source 

Astronomers have used recent observations made with the James Webb Space Telescope to study the atmosphere of the nearby exoplanet WASP-107b. Peering deep into the fluffy atmosphere of WASP-107b they discovered not only water vapor and sulfur dioxide, but even silicate sand clouds. These particles reside within a dynamic atmosphere that exhibits vigorous transport of material.

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

Downloading NASA's dark matter data from above the clouds      (via sciencedaily.com)     Original source 

Data from a NASA mission to map dark matter around galaxy clusters has been saved by a new recovery system. The system allowed the retrieval of gigabytes of information, even after communication failed and the balloon-based telescope was damaged in the landing process.

Geoscience: Earth Science Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features Space: The Solar System
Published

'Bouncing' comets could deliver building blocks for life to exoplanets      (via sciencedaily.com)     Original source 

How did the molecular building blocks for life end up on Earth? One long-standing theory is that they could have been delivered by comets. Now, researchers have shown how comets could deposit similar building blocks to other planets in the galaxy.