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Categories: Biology: Marine, Space: Structures and Features
Published Three iron rings in a planet-forming disk
(via sciencedaily.com) Original source Astronomers have detected a three-ringed structure in the nursery of planets in the inner planet-forming disk of a young star. This configuration suggests two Jupiter-mass planets are forming in the gaps between the rings. The detailed analysis is consistent with abundant solid iron grains complementing the dust composition. As a result, the disk likely harbors metals and minerals akin to those in the Solar System's terrestrial planets. It offers a glimpse into conditions resembling the early Solar System over four billion years ago during the formation of rocky planets such as Mercury, Venus, and Earth.
Published Space oddity: Uncovering the origin of the universe's rare radio circles
(via sciencedaily.com) Original source Astronomers believe they may have found the origin of the universe's giant odd radio circles: they are shells formed by outflowing galactic winds, possibly from massive exploding stars known as supernovae.
Published Fastest swimming insect could inspire uncrewed boat designs
(via sciencedaily.com) Original source Whirligig beetles, the world's fastest-swimming insect, achieve surprising speeds by employing a strategy shared by fast-swimming marine mammals and waterfowl, according to a new study that rewrites previous explanations of the physics involved.
Published The snail or the egg?
(via sciencedaily.com) Original source Animals reproduce in one of two distinct ways: egg-laying or live birth. By studying an evolutionarily recent transition from egg-laying to live-bearing in a marine snail, collaborative research has shed new light on the genetic changes that allow organisms to make the switch.
Published Male southern elephant seals are picky eaters
(via sciencedaily.com) Original source New research suggests these large marine mammals are extremely fussy and only eat their favorite foods.
Published The choreography connecting kelp forests to the beach
(via sciencedaily.com) Original source A new study uncovers a symphony of synchrony between the kelp forest and beach, with broader implications for the beach food web as the climate changes.
Published Vitamin discovered in rivers may offer hope for salmon suffering from thiamine deficiency disease
(via sciencedaily.com) Original source Researchers have discovered vitamin B1 produced by microbes in rivers, findings that may offer hope for vitamin-deficient salmon populations.
Published 'Giant' predator worms more than half a billion years old discovered in North Greenland
(via sciencedaily.com) Original source Fossils of a new group of animal predators have been located in the Early Cambrian Sirius Passet fossil locality in North Greenland. These large worms may be some of the earliest carnivorous animals to have colonized the water column more than 518 million years ago, revealing a past dynasty of predators that scientists didn't know existed.
Published Magnetic fields in the cosmos: Dark matter could help us discover their origin
(via sciencedaily.com) Original source We don't know how magnetic fields in the cosmos formed. Now a new theoretical research tells how the invisible part of our universe could help us find out, suggesting a primordial genesis, even within a second of the Big Bang.
Published A carbon-lite atmosphere could be a sign of water and life on other terrestrial planets
(via sciencedaily.com) Original source Best chance of finding liquid water, and even life on other planets, is to look for the absence of carbon dioxide in their atmospheres.
Published Further evidence for quark-matter cores in massive neutron stars
(via sciencedaily.com) Original source New theoretical analysis places the likelihood of massive neutron stars hiding cores of deconfined quark matter between 80 and 90 percent. The result was reached through massive supercomputer runs utilizing Bayesian statistical inference.
Published Hubble sights a galaxy with 'forbidden' light
(via sciencedaily.com) Original source A whirling image features a bright spiral galaxy known as MCG-01-24-014, which is located about 275 million light-years from Earth. In addition to being a well-defined spiral galaxy, MCG-01-24-014 has an extremely energetic core known as an active galactic nucleus (AGN) and is categorized as a Type-2 Seyfert galaxy. Seyfert galaxies, along with quasars, host one of the most common subclasses of AGN. While the precise categorization of AGNs is nuanced, Seyfert galaxies tend to be relatively nearby and their central AGN does not outshine its host, while quasars are very distant AGNs with incredible luminosities that outshine their host galaxies.
Published Researchers study a million galaxies to find out how the universe began
(via sciencedaily.com) Original source Researchers have analyzed more than one million galaxies to explore primordial fluctuations that seeded the formation of the structure of the entire universe.
Published Astronomers detect seismic ripples in ancient galactic disk
(via sciencedaily.com) Original source A new snapshot of an ancient, far-off galaxy could help scientists understand how it formed and the origins of our own Milky Way. At more than 12 billion years old, BRI 1335-0417 is the oldest and furthest known spiral galaxy in our universe. The researchers were able to not only capture the motion of the gas around BRI 1335-0417, but also reveal a seismic wave forming -- a first in this type of early galaxy.
Published New 1.5-billion-pixel image shows Running Chicken Nebula in unprecedented detail
(via sciencedaily.com) Original source While many holiday traditions involve feasts of turkey, soba noodles, latkes or Pan de Pascua, this year, the European Southern Observatory is bringing you a holiday chicken. The so-called Running Chicken Nebula, home to young stars in the making, is revealed in spectacular detail in this 1.5-billion-pixel image captured by the VLT Survey Telescope.
Published Supernova encore: Second lensed supernova in a distant galaxy
(via sciencedaily.com) Original source In November 2023, NASA's James Webb Space Telescope observed a massive cluster of galaxies named MACS J0138.0-2155. Through an effect called gravitational lensing, first predicted by Albert Einstein, a distant galaxy named MRG-M0138 appears warped by the powerful gravity of the intervening galaxy cluster. In addition to warping and magnifying the distant galaxy, the gravitational lensing effect caused by MACS J0138 produces five different images of MRG-M0138.
Published Pancake stack of films on a balloon most accurate gamma-ray telescope
(via sciencedaily.com) Original source A pancake stack of radioactivity-sensitive films carried through the sky by a balloon was able to take the world's most accurate picture of a neutron star's gamma ray beam. To achieve this, researchers combined the oldest method of capturing radioactive radiation with the newest data capturing techniques and a clever time-recording device.
Published Cosmic lights in the forest
(via sciencedaily.com) Original source Supercomputer helped astronomers develop PRIYA, the largest suite of hydrodynamic simulations yet made of large-scale structure in the universe.
Published Fish display distinct individual behaviors when swimming to find food
(via sciencedaily.com) Original source Fish from the same species can evolve their sense of smell and display individual foraging 'personalities' to successfully find food in different habitats.
Published Global inventory of sound production brings us one step closer to understanding aquatic ecosystems
(via sciencedaily.com) Original source Our understanding of which aquatic species produce sounds just took a big step forward. Scientists have created an inventory of species confirmed or expected to produce sound underwater.