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Categories: Ecology: Trees, Space: Cosmology
Published Researchers measure size-luminosity relation of galaxies less than a billion years after Big Bang
(via sciencedaily.com) A team has studied the relation between galaxy size and luminosity of some of the earliest galaxies in the universe taken by the James Webb Space Telescope, less than a billion years after the Big Bang.
Published NASA's Webb uncovers star formation in cluster's dusty ribbons
(via sciencedaily.com) NGC 346, one of the most dynamic star-forming regions in nearby galaxies, is full of mystery. Now, it is less mysterious with new findings from NASA's James Webb Space Telescope.
Published Landscaping for drought: We're doing it wrong
(via sciencedaily.com) Original source Despite recent, torrential rains, most of Southern California remains in a drought. Accordingly, many residents plant trees prized for drought tolerance, but a new study shows that these trees lose this tolerance once they're watered.
Published Ultracool dwarf binary stars break records
(via sciencedaily.com) Astrophysicists have discovered the tightest ultracool dwarf binary system ever observed. The two stars are so close that it takes them less than one Earth day to revolve around each other. In other words, each star's 'year' lasts just 20.5 hours.
Published Wide diversity of galaxies in the early universe
(via sciencedaily.com) New data have revealed that the structures of galaxies in the early universe were much more diverse and mature than previously known. JWST's ability to see faint high redshift galaxies in sharper detail than Hubble allowed the team of researchers to resolve more features and see a wide mix of galaxies.
Published Scientists find pair of black holes dining together in nearby galaxy merger
(via sciencedaily.com) While studying a nearby pair of merging galaxies scientists have discovered two supermassive black holes growing simultaneously near the center of the newly coalescing galaxy. These super-hungry giants are the closest together that scientists have ever observed in multiple wavelengths. What's more, the new research reveals that binary black holes and the galaxy mergers that create them may be surprisingly commonplace in the Universe.
Published Forests recovering from logging act as a source of carbon
(via sciencedaily.com) Original source Tropical forests recovering from logging are sources of carbon for years afterwards, contrary to previous assumptions, finds a new study.
Published Searching for the earliest galaxies in the universe
(via sciencedaily.com) Astronomers have used data from NASA's James Webb Space Telescope (JWST) Early Release Observations and discovered 87 galaxies that could be the earliest known galaxies in the universe. The finding moves the astronomers one step closer to finding out when galaxies first appeared in the universe -- about 200-400 million years after the Big Bang.
Published NASA's Webb Telescope reveals links between galaxies near and far
(via sciencedaily.com) A new analysis of distant galaxies imaged by NASA's James Webb Space Telescope shows that they are extremely young and share some remarkable similarities to 'green peas,' a rare class of small galaxies in our cosmic backyard.
Published New York City's greenery absorbs a surprising amount of its carbon emissions
(via sciencedaily.com) Original source A study of vegetation across New York City and some densely populated adjoining areas has found that on many summer days, photosynthesis by trees and grasses absorbs all the carbon emissions produced by cars, trucks and buses, and then some. The surprising result, based on new hyper-local vegetation maps, points to the underappreciated importance of urban greenery in the carbon cycle.
Published James Webb telescope reveals Milky Way-like galaxies in young universe
(via sciencedaily.com) New images from NASA's James Webb Space Telescope (JWST) reveal galaxies with stellar bars -- elongated features of stars stretching from the centers of galaxies into their outer disks -- at a time when the universe was a mere 25% of its present age. The finding of so-called barred galaxies, similar to our Milky Way, this early in the universe will require astrophysicists to refine their theories of galaxy evolution.
Published Hubble finds that ghost light among galaxies stretches far back in time
(via sciencedaily.com) In giant clusters of hundreds or thousands of galaxies, innumerable stars wander among the galaxies like lost souls, emitting a ghostly haze of light. These stars are not gravitationally tied to any one galaxy in a cluster. The nagging question for astronomers has been: how did the stars get so scattered throughout the cluster in the first place? Several competing theories include the possibility that the stars were stripped out of a cluster's galaxies, or they were tossed around after mergers of galaxies, or they were present early in a cluster's formative years many billions of years ago.
Published Rwandan tree carbon stock mapped from above
(via sciencedaily.com) Original source Researchers have developed accurate nation-wide mapping of the carbon content of trees based on aerial images.
Published UK woodlands could store almost twice as much carbon as previously estimated
(via sciencedaily.com) Original source UK forests could store almost double the amount of carbon than previous calculations suggest, with consequences for our understanding of carbon stocks and humanity's response to climate change, according to a new study.
Published Orangutan communication sheds light on human speech origins
(via sciencedaily.com) Original source Research finds orangutans communicate using a complex repertoire of consonant-like calls, more so than African apes. Previous research has only linked the evolution of human language with the voiced-vowel sounds produced by non-human primates, despite human language being composed of vowel and consonant sounds. Orangutans' tree-dwelling nature means they use their mouth, lips and jaw as a 'fifth hand', unlike ground-dwelling African apes. Their sophisticated use of their mouths, mean orangutans communicate using a rich variety of consonant sounds.
Published Measuring gamma-ray bursts' hidden energy unearths clues to the evolution of the universe
(via sciencedaily.com) When stars die out, they emit gamma-ray bursts. Although scientist can calculate the explosion energy from dying stars, it is difficult to do when the conversion efficiency is low or unknown. Using light polarization, a research group has found a workaround for this, enabling astronomers to calculate the hidden energy of gamma-ray bursts.
Published Webb Space Telescope reveals previously shrouded newborn stars
(via sciencedaily.com) Astronomers took a 'deep dive' into one of the first images from NASA's James Webb Space Telescope and were rewarded with a surprising discovery: telltale signs of two dozen previously unseen young stars about 7,500 light years from Earth.
Published Light from outside our galaxy brighter than expected
(via sciencedaily.com) Scientists analyzed new measurements showing that the light emitted by stars outside our galaxy is two to three times brighter than the light from known populations of galaxies, challenging assumptions about the number and environment of stars are in the universe.
Published Wood-eating clams use their feces to dominate their habitat
(via sciencedaily.com) Original source Researchers didn't know what to make of sunken pieces of wood that were so thoroughly chewed-up by clams that the wood crumbled in their hands. It turns out, the super-chewer wood-eating clams had a secret weapon for forcing out other species. The clams, who have special adaptations that let them survive in dirty, low-oxygen water, built chimneys out of their own feces, making the wood a 'crappy' home for any animal except them.
Published Exquisite views of distant galaxies
(via sciencedaily.com) Original source For decades, the Hubble Space Telescope provided us with the most spectacular images of galaxies. This all changed when the James Webb Space Telescope (JWST) launched and successfully completed commissioning. For astronomers, the universe is now revealed in a new way never imagined by the telescope's Near-Infrared Camera (NIRCam) instrument.