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Keyword: science

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  • Astronomy Picture of the Day - Millions of Stars in Omega Centauri

    03/28/2024 1:12:27 PM PDT · by MtnClimber · 21 replies
    NASA ^ | 28 Mar, 2024 | Image Credit & Copyright: Massimo Di Fusco and Mirco Turra
    Explanation: Globular star cluster Omega Centauri, also known as NGC 5139, is 15,000 light-years away. The cluster is packed with about 10 million stars much older than the Sun within a volume about 150 light-years in diameter. It's the largest and brightest of 200 or so known globular clusters that roam the halo of our Milky Way galaxy. Though most star clusters consist of stars with the same age and composition, the enigmatic Omega Cen exhibits the presence of different stellar populations with a spread of ages and chemical abundances. In fact, Omega Cen may be the remnant core of...
  • Scientists find one of the most ancient stars that formed in another galaxy

    03/26/2024 1:04:10 PM PDT · by Red Badger · 12 replies
    Eureka Alert! ^ | 20-MAR-2024 | Peer-Reviewed Publication UNIVERSITY OF CHICAGO
    Stars from the Large Magellanic Cloud reveal new hints about how the universe got its elements ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The first generation of stars transformed the universe. Inside their cores, simple hydrogen and helium fused into a rainbow of elements. When these stars died, they exploded and sent these new elements across the universe. The iron running in your veins and the calcium in your teeth and the sodium powering your thoughts were all born in the heart of a long-dead star. No one has been able to find one of those first generation of stars, but scientists have announced a unique...
  • How much energy AI really needs. And why that's not its main problem. [8:05]

    03/26/2024 2:18:35 PM PDT · by SunkenCiv · 15 replies
    YouTube ^ | March 25, 2024 | Sabine Hossenfelder
    How much energy AI really needs. And why that's not its main problem. | 8:05Sabine Hossenfelder | 1.19M subscribers | 171,326 views | March 25, 2024
  • World’s fastest camera shoots at 156.3 trillion frames per second

    03/26/2024 11:50:12 AM PDT · by Red Badger · 35 replies
    New Atlas ^ | March 26, 2024 | By Michael Irving
    Engineers at INRS Énergie Matériaux Télécommunications Research Centre in Canada have developed the world’s fastest camera, which can shoot at an astonishing 156.3 trillion frames per second (fps). The best slow-mo cameras in phones are usually working with a few hundred fps. Professional cinematic cameras might use a few thousand, to achieve a smoother effect. But if you want to see what’s going on at the nanoscale, you’ll need to slow things way down, to the billions or even trillions of frames per second. The new camera can reportedly capture events that occur in the realm of femtoseconds – quadrillionths...
  • Climate: The Movie - The Cold Truth

    03/26/2024 10:59:11 AM PDT · by ScaniaBoy · 17 replies
    Free Your Mind Documentaries ^ | 21 March, 2024 | Martin Durkin
    Climate: The Movie (The Cold Truth) - Martin Durkin . This film exposes the climate alarm as an invented scare without any basis in science. It shows that mainstream studies and official data do not support the claim that we are witnessing an increase in extreme weather events – hurricanes, droughts, heatwaves, wildfires and all the rest. It emphatically counters the claim that current temperatures and levels of atmospheric CO2 are unusually and worryingly high. On the contrary, it is very clearly the case, as can be seen in all mainstream studies, that, compared to the last half billion years...
  • Interactions Between Orbits of Mars and Earth Drive Climate Change Patterns

    03/26/2024 4:12:09 AM PDT · by MtnClimber · 32 replies
    Legal Insurrection ^ | 25 Mar, 2024 | Leslie Eastman
    Mars-caused changes in Earth’s orbit impacts ocean currents and temperatures every 2.4 million years and is known as an “astronomical grand cycle.” Anyone with an inkling of knowledge of geologic history appreciates Earth’s climate is constantly changing. This change has many reasons, including solar cycles, volcanic activity, and asteroids. New research shows another potentially significant player in Earth’s climate change cycles: Mars, our neighboring planet. Geological evidence tracing back more than 65 million years and taken from hundreds of sites across the world suggests that deep-sea currents have repeatedly gone through periods of being either stronger or weaker. This happens...
  • DARPA aims to build a lunar railroad in its latest effort to establish a human colony on the Moon

    03/25/2024 8:13:03 AM PDT · by Twotone · 49 replies
    The Blaze ^ | March 23, 2024 | Collin Jones
    The Defense Advanced Research Projects Agency has set its sights on the Moon, recently choosing defense giant Northrop Grumman to work on concepts for building a lunar railroad network, according to the Debrief. The recent development is DARPA's latest announcement concerning their 10-year Lunar Architecture (LunA-10) Capability Study. The ultimate goal is to reportedly establish a human colony on the Moon and a "thriving lunar economy." DARPA published the following statement about the development: The 10-Year Lunar Architecture (LunA-10) will explore the rapid development of foundational technology concepts designed to move away from individual scientific efforts within isolated, self-sufficient systems...
  • Astronomy Picture of the Day - Sonified: The Jellyfish Nebula Supernova Remnant

    03/25/2024 1:30:44 PM PDT · by MtnClimber · 3 replies
    NASA ^ | 25 Mar, 2024 | Image Credit: X-ray (blue): Chandra (NASA) & ROSAT (ESA); Optical (red): DSS (NSF); Radio (green): V
    Explanation: What does a supernova remnant sound like? Although sound is a compression wave in matter and does not carry into empty space, interpretive sound can help listeners appreciate and understand a visual image of a supernova remnant in a new way. Recently, the Jellyfish Nebula (IC 443) has been sonified quite creatively. In the featured sound-enhanced video, when an imaginary line passes over a star, the sound of a drop falling into water is played, a sound particularly relevant to the nebula's aquatic namesake. Additionally, when the descending line crosses gas that glows red, a low tone is played,...
  • Astronomy Picture of the Day - Looking Back at an Eclipsed Earth

    03/24/2024 11:50:33 AM PDT · by MtnClimber · 14 replies
    NASA ^ | 24 Mar, 2024 | Image Credit: Mir 27 Crew; Copyright: CNES
    Explanation: Here is what the Earth looks like during a solar eclipse. The shadow of the Moon can be seen darkening part of Earth. This shadow moved across the Earth at nearly 2000 kilometers per hour. Only observers near the center of the dark circle see a total solar eclipse - others see a partial eclipse where only part of the Sun appears blocked by the Moon. This spectacular picture of the 1999 August 11 solar eclipse was one of the last ever taken from the Mir space station. The two bright spots that appear on the upper left are...
  • Scientists Working to Create Human Embryos with DNA from Two Men

    03/24/2024 6:33:48 AM PDT · by Bon of Babble · 56 replies
    Gateway Pundit ^ | 03/23/2024 | Cassandra MacDonald
    Scientists are “getting closer” to creating human embryos using the DNA of two men and no women.
  • NASA Says T Coronae Borealis Nova Set to Create a "New Star" in a Once-In-A-Lifetime Event

    03/20/2024 12:06:00 PM PDT · by Red Badger · 26 replies
    The Debrief ^ | MARCH 20, 2024 | TIM MCMILLAN
    In the coming months, the world is set to witness an extraordinary celestial event as a massive explosion in the T Coronae Borealis star system is poised to create a “new star” in the night sky. This rare astronomical event, expected to occur between now and September 2024, is not the birth of a star but rather an extraordinary nova outburst from T Coronae Borealis (T CrB), situated 3,000 light-years away in the constellation of Corona Borealis. NASA described the anticipated nova outburst as a “once-in-a-lifetime viewing opportunity” as T Coronae Borealis is predicted to become as bright as the...
  • Uncanny "Adaptive Durability" Makes This Strange New Material Stronger Every Time You Hit It

    03/21/2024 6:46:18 AM PDT · by Red Badger · 29 replies
    The Debrief ^ | MARCH 21, 2024 | CHRISTOPHER PLAIN
    A team of engineers has invented a remarkable new material that gets stronger after an impact. The material’s creators also say it is electrically conductive, making it an ideal candidate for wearables or other electronics that are subject to repeated stresses and impacts. Rather surprisingly, the inventors of their new material say the unique properties of corn starch, a common food additive, inspired their efforts. “When I stir cornstarch and water slowly, the spoon moves easily,” explains Yue (Jessica) Wang, a materials scientist and the project’s principal investigator. “But if I lift the spoon out and then stab the mixture,...
  • James Webb Space Telescope Detects Alcohol and Icy Organic Molecules Around a Protostar Pair

    03/19/2024 10:22:46 AM PDT · by SunkenCiv · 25 replies
    The Debrief ^ | March 18, 2024 | Micah Hanks
    The latest discoveries were made by Webb's Mid-Infrared Instrument (MIRI) instrument as part of the James Webb Observations of Young ProtoStars (JOYS+) program and revealed key chemical ingredients astronomers are looking for in the search for distant worlds that could be home to life.Given that they are young protostars, IRAS 2A and IRAS 23385 do not appear to have planets in orbits around them yet. However, the detections of organic molecules around them are promising indicators for regions of future habitability.Along with the detection of ethanol, MIRI has also detected what astronomers believe is probably acetic acid, an ingredient commonly...
  • The Atlantic Ocean could be SWALLOWED by a terrifying 'Ring of Fire', scientists say as they discover a 'sleeping' subduction zone beneath the Gibraltar Strait

    03/18/2024 8:46:34 PM PDT · by week 71 · 54 replies
    Daily Mail ^ | 3/18/24 | Jonathan Chadwick
    Although it may seem like an eternal feature of Earth, the Atlantic Ocean could be swallowed by a vast subduction zone, dubbed the 'Ring of Fire', a new study warns. Scientists in Portugal say this subduction zone is currently located beneath the Gibraltar Strait, the narrow gap of water between Spain and Morocco. But the experts think it could grow and expand westwards into the Atlantic and eventually become responsible for a 'closing' or shrinking of the ocean basin.
  • Astronomy Picture of the Day - NGC 7714: Starburst after Galaxy Collision

    03/17/2024 2:01:58 PM PDT · by MtnClimber · 7 replies
    NASA ^ | 17 Mar, 2024 | Image Credit: NASA, ESA, Hubble Legacy Archive; Processing & Copyright: Rudy Pohl
    Explanation: Is this galaxy jumping through a giant ring of stars? Probably not. Although the precise dynamics behind the featured image is yet unclear, what is clear is that the pictured galaxy, NGC 7714, has been stretched and distorted by a recent collision with a neighboring galaxy. This smaller neighbor, NGC 7715, situated off to the left of the frame, is thought to have charged right through NGC 7714. Observations indicate that the golden ring pictured is composed of millions of older Sun-like stars that are likely co-moving with the interior bluer stars. In contrast, the bright center of NGC...
  • Study: Dark matter does not exist and the universe is 27 billion years old

    03/17/2024 9:14:09 AM PDT · by yesthatjallen · 61 replies
    Earth via MSN ^ | 03 17 2024 | Eric Ralls
    The fabric of the cosmos, as we currently understand it, comprises three primary components: 'normal matter,' 'dark energy,' and 'dark matter.' However, new research is turning this established model on its head. A recent study conducted by the University of Ottawa presents compelling evidence that challenges the traditional model of the universe, suggesting that there may not be a place for dark matter within it. Dark matter, a term used in cosmology, refers to the elusive substance that does not interact with light or electromagnetic fields and is only identifiable through its gravitational effects. Despite its mysterious nature, dark matter...
  • Unexpected Discovery of “Impossible Galaxy” Shatters Astronomical Boundaries

    03/15/2024 12:54:00 PM PDT · by Red Badger · 27 replies
    Scitech Daily ^ | MARCH 13, 2024 | By KIM BAPTISTA, ARIZONA STATE UNIVERSITY
    The unexpected discovery of the dwarf galaxy PEARLSDG, which is isolated and quiescent, challenges established views on galaxy evolution and highlights the capabilities of the James Webb Space Telescope in uncovering cosmic phenomena. (Artist’s concept.) Credit: SciTechDaily.com PEARLSDG, an isolated dwarf galaxy found by the James Webb Space Telescope, defies standard galactic evolution theories by not forming new stars, indicating a need to revise our understanding of galaxies. A team of astronomers, led by Arizona State University Assistant Research Scientist Tim Carleton, has discovered a dwarf galaxy that appeared in James Webb Space Telescope (JWST) imaging that wasn’t the primary...
  • Astronomy Picture of the Day - Portrait of NGC 1055

    03/15/2024 12:14:16 PM PDT · by MtnClimber · 12 replies
    NASA ^ | 15 Mar, 2024 | Image Credit & Copyright: Dave Doctor
    Explanation: Big, beautiful spiral galaxy NGC 1055 is a dominant member of a small galaxy group a mere 60 million light-years away toward the aquatically intimidating constellation Cetus. Seen edge-on, the island universe spans over 100,000 light-years, a little larger than our own Milky Way galaxy. The colorful, spiky stars decorating this cosmic portrait of NGC 1055 are in the foreground, well within the Milky Way. But the telltale pinkish star forming regions are scattered through winding dust lanes along the distant galaxy's thin disk. With a smattering of even more distant background galaxies, the deep image also reveals a...
  • Giant Volcano on Mars, Hiding in Plain Sight for Decades, is 'Long-Sought Smoking Gung' for Scientists

    03/15/2024 8:29:43 AM PDT · by Red Badger · 36 replies
    The Debrief ^ | MARCH 13, 2024 | MICAH HANKS
    Scientists have discovered a gigantic volcano on Mars near the planet’s equator that remained unnoticed for decades, according to newly published research. The huge volcano was found in the Red Planet’s eastern Tharsis volcanic province, along with what researchers interpret to be a large sheet of buried glacial ice beneath the Martian surface. The discovery came as a surprise, partly because orbital spacecraft have photographed this region of Mars since the early 1970s. Hidden in plain sight now for decades, the giant volcano, which has undergone extensive erosion over time, somehow remained unnoticed. The feature has been given the temporary...
  • ‘Follow the Science’ Leads to Ruin

    03/14/2024 9:05:58 PM PDT · by bitt · 19 replies
    wsj.com/ ^ | 3/13/2024 | Bjorn Lomborg
    Climate policy needs to take into account the costs of draconian measures, which are enormous. More than one million people die in traffic accidents globally each year. Overnight, governments could solve this entirely man-made problem by reducing speed limits everywhere to 3 miles an hour, but we’d laugh any politician who suggested it out of office. It would be absurd to focus solely on lives saved if the cost would be economic and societal destruction. Yet politicians widely employ the same one-sided reasoning in the name of fighting climate change. It’s simply a matter, they say, of “following the science.”...