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Science (General/Chat)

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  • Astronomy Picture of the Day - CG4: The Globule and the Galaxy (I missed posting this yesterday)

    05/22/2024 12:54:57 PM PDT · by MtnClimber · 6 replies
    NASA ^ | 21 May, 2024 | Image Credit: CTIO, NOIRLab, DOE, NSF, AURA; Processing: T. A. Rector (U. Alaska Anchorage/NSF’s NOI
    Explanation: Can a gas cloud eat a galaxy? It's not even close. The "claw" of this odd looking "creature" in the featured photo is a gas cloud known as a cometary globule. This globule, however, has ruptured. Cometary globules are typically characterized by dusty heads and elongated tails. These features cause cometary globules to have visual similarities to comets, but in reality they are very much different. Globules are frequently the birthplaces of stars, and many show very young stars in their heads. The reason for the rupture in the head of this object is not yet known. The galaxy...
  • Astronomy Picture of the Day - Green Aurora over Sweden

    05/22/2024 12:40:21 PM PDT · by MtnClimber · 8 replies
    NASA ^ | 22 May, 2024 | Image Credit & Copyright: Göran Strand
    Explanation: It was bright and green and stretched across the sky. This striking aurora display was captured in 2016 just outside of Östersund, Sweden. Six photographic fields were merged to create the featured panorama spanning almost 180 degrees. Particularly striking aspects of this aurora include its sweeping arc-like shape and its stark definition. Lake Storsjön is seen in the foreground, while several familiar constellations and the star Polaris are visible through the aurora, far in the background. Coincidently, the aurora appears to avoid the Moon visible on the lower left. The aurora appeared a day after a large hole opened...
  • Astronomers find long-missing dwarf galaxies — too many of them...Apparent overabundance means theories of how galaxies took shape in the early universe may need adjusting

    05/22/2024 12:04:05 PM PDT · by Red Badger · 12 replies
    Science.ORG ^ | May 22, 2024 | JONATHAN O’CALLAGHAN
    Two dwarf galaxies (top and bottom) orbit the much larger Andromeda galaxy. DAVID DAYAG/WIKIMEDIA COMMONS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ When astronomers fret about the “missing satellites problem,” they’re not talking about spacecraft in Earth orbit. Their problem is much bigger: For decades, far fewer dwarf galaxies have been seen orbiting the Milky Way and other large galaxies than predicted by models of galaxy formation. But now, two groups of astronomers have found evidence for not just a sufficient number of satellite galaxies to satisfy the simulations—but too many. “Maybe we’ve oversolved the problem,” says Marcel Pawlowski, an astronomer at the Leibniz Institute for...
  • 'Hidden Gem' Dinosaur Skin Fossil Reveals Surprises About Feather Evolution

    05/22/2024 11:16:58 AM PDT · by Red Badger · 15 replies
    Science Alert ^ | May 22, 2024 | ByZIXIAO YANG & MARIA MCNAMARA
    The studied Psittacosaurus under natural (upper half) and UV light (lower half). (Zixiao Yang, Author provided) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Strong but light, beautiful and precisely structured, feathers are the most complex skin appendage that ever evolved in vertebrates. Despite the fact humans have been playing with feathers since prehistory, there's still a lot we don't understand about them. Our new study found that some of the first animals with feathers also had scaly skin like reptiles. Following the debut of the first feathered dinosaur, Sinosauropteryx prima, in 1996, a surge of discoveries has painted an ever more interesting picture of feather evolution....
  • Earth-sized Planet Orbiting the Most Common Star in the Galaxy Found Hanging out in Our Cosmic Back Yard

    05/22/2024 7:45:46 AM PDT · by Red Badger · 23 replies
    The Debrief ^ | May 22, 2024 | Christopher Plain
    Scientists using the SPECULOOS (Search for Planets EClipsing ULtra-cOOl Stars) telescope network have reported the discovery of an Earth-sized planet orbiting the most common star type in the galaxy a mere 55 light years away. Given that the farthest star ever spotted by human scientists lies over 9 billion light-years from Earth, this newly discovered rocky world is one of the closest such space bodies ever spotted. Dubbed SPECULOOS-3 b, the planet orbits an ultracool red dwarf star, the most common star in the Milky Way galaxy. This type of star can live 100 times longer than our Sun, making...
  • This NASA-Funded Pulsed Plasma Propulsion System Could Carry Humans to Mars In Just Two Months

    05/21/2024 11:37:55 AM PDT · by Red Badger · 39 replies
    The Debrief ^ | May 21, 2024 | Micah Hanks
    A groundbreaking new pulsed plasma propulsion system could soon enable faster and safer crewed missions to planets like Mars, according to a leading developer of novel technologies aimed at advancing the next stages of human space exploration. Scottsdale, Arizona-based space technology developer Howe Industries recently announced that its Pulsed Plasma Rocket (PPR) could represent a game-changer in advanced propulsion for space travel, allowing crewed missions to significantly reduce the travel time required to reach Mars. According to current timelines, NASA aims to send the first crewed missions to Mars within the next two decades using habitat-like spacecraft paired with hybrid...
  • Explore Rome's Best Underground Site [10:38]

    05/21/2024 10:43:41 AM PDT · by SunkenCiv · 17 replies
    YouTube ^ | February 26, 2024 | Darius Arya Digs
    Explore subterranean Rome! This ancient site in Rome is a sort of time elevator! Descend with Darius underneath the medieval church of San Clemente to discover the early Christian church and below that the imperial level remains of a domus (house) with a mithraeum and a next door horreum (warehouse), and much more!0:00 Introduction and overview1:55 Imperial house (with Mithraeum) and warehouse5:18 Late Antique house and early Christian church8:21 The 12C church that stands todayExplore Rome's Best Underground Site | 10:38Darius Arya Digs | 26.2K subscribers | 35,050 views | February 26, 2024
  • Is Beef Production A Major Contributor To Climate Change?

    05/21/2024 5:31:48 AM PDT · by MtnClimber · 41 replies
    Manhattan Contrarian ^ | 20 May, 2024 | Francis Menton
    Undoubtedly, by this time in your life you have read a hundred times, or maybe a thousand, that beef production is a “major contributor” to climate change. It’s one of those narratives that has become a continuous drumbeat in the progressive press. Probably, you have had no reason to question it. Without thinking about it, you likely assume that this narrative is probably true. But there is good reason to think critically about this one. Among the various scare stories used to take further control of your life, this is one of the more important. With the war against...
  • Astronomy Picture of the Day - Aurora Dome Sky

    05/20/2024 12:46:22 PM PDT · by MtnClimber · 11 replies
    NASA ^ | 20 May, 2024 | Image Credit & Copyright: Xuecheng Liu & Yuxuan Liu
    Explanation: It seemed like night, but part of the sky glowed purple. It was the now famous night of May 10, 2024, when people over much of the world reported beautiful aurora-filled skies. The featured image was captured this night during early morning hours from Arlington, Wisconsin, USA. The panorama is a composite of several 6-second exposures covering two thirds of the visible sky, with north in the center, and processed to heighten the colors and remove electrical wires. The photographer (in the foreground) reported that the aurora appeared to flow from a point overhead but illuminated the sky only...
  • Webb Cracks Case of Inflated Exoplanet

    05/20/2024 12:34:43 PM PDT · by Red Badger · 6 replies
    NASA - Webb Space Telescope ^ | May 20, 2024 | NASA Webb Mission Team, Goddard Space Flight Center
    Why is the warm gas-giant exoplanet WASP-107 b so puffy? Two independent teams of researchers have an answer. Data collected using NASA’s James Webb Space Telescope, combined with prior observations from NASA’s Hubble Space Telescope, show surprisingly little methane (CH4) in the planet’s atmosphere, indicating that the interior of WASP-107 b must be significantly hotter and the core much more massive than previously estimated. The unexpectedly high temperature is thought to be a result of tidal heating caused by the planet’s slightly non-circular orbit, and can explain how WASP-107 b can be so inflated without resorting to extreme theories of...
  • Hubble Views Cosmic Dust Lanes

    05/20/2024 7:02:08 AM PDT · by Red Badger · 7 replies
    NASA - Hubble Space Telescope ^ | May 17, 2024 | NASA Hubble Mission Team , Goddard Space Flight Center
    This Hubble Space Telescope image showcases a nearly edge-on view of the lenticular galaxy NGC 4753. ESA/Hubble & NASA, L. Kelsey ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Featured in this new image from the NASA/ESA Hubble Space Telescope is a nearly edge-on view of the lenticular galaxy NGC 4753. Lenticular galaxies have an elliptical shape and ill-defined spiral arms. This image is the object's sharpest view to date, showcasing Hubble’s incredible resolving power and ability to reveal complex dust structures. NGC 4753 resides around 60 million light-years from Earth in the constellation Virgo and was first discovered by the astronomer William Herschel in 1784. It...
  • Ex-CDC Director Dr. Robert Redfield Says It's High Time To Admit 'Significant Side Effects' Of COVID-19 Vaccines

    05/19/2024 6:11:56 PM PDT · by SeekAndFind · 60 replies
    Epoch Times ^ | 05/19/2024 | Tom Ozimek
    Dr. Robert Redfield, former director of the Centers for Disease Control and Prevention (CDC), said Thursday that many officials who tried to warn the public about potential problems with COVID-19 vaccines were pressured into silence and that it’s high time to admit that there were “significant” side effects that made people sick.Dr. Redfield made the remarks in a May 16 interview with Chris Cuomo on NewsNation, during which he lamented the loss of public confidence in public health agencies because of a lack of transparency around the vaccines, which he said “saved a lot of lives” but also made some...
  • The Man Who Killed Richard III [Tubi, 48 min]

    05/19/2024 4:46:22 PM PDT · by SunkenCiv · 10 replies
    Tubi ^ | 2015 | Starring:Elin Rhys, Directed by:W. Dyfrig Davies
    This is a story of conspiracy and betrayal, of a lust for power and a lost allegiance; the story of the man who killed King Richard III. In this documentary we set out to prove that the Welshman Sir Rhys ap Thomas, master of Carew Castle in Pembrokeshire, killed King Richard III, changing the course of British history. We uncover what drove him Rhys ap Thomas to betray not only his master but a King – and we reveal his remarkable story; from a childhood embroiled in the War of the Roses and exile to the continent, to a determined...
  • Astra Zeneca: Recalls their Covid-19 Injectable Product You might have heard that the AstraZeneca Covid-19 injectable product has been withdrawn from market use.

    05/19/2024 2:48:58 PM PDT · by Grampa Dave · 16 replies ^ | May 19, 2024 | JESSICA ROSE
  • Astronomy Picture of the Day - Jupiter Diving

    05/19/2024 1:11:52 PM PDT · by MtnClimber · 5 replies
    NASA ^ | 19 May, 2024 | Animated Video Credit: NASA, JPL-Caltech, SwRI, MSSS, Gerald Eichstadt, Justin Cowart
    Explanation: Take this simulated plunge and dive into the upper atmosphere of Jupiter, the Solar System's ruling gas giant. The awesome animation is based on image data from JunoCam, and the microwave radiometer on board the Jupiter-orbiting Juno spacecraft. Your view will start about 3,000 kilometers above the southern Jovian cloud tops, and you can track your progress on the display at the left. As altitude decreases, temperature increases while you dive deeper at the location of Jupiter's famous Great Red Spot. In fact, Juno data indicates the Great Red Spot, the Solar System's largest storm system, penetrates some 300...
  • Ancient Mycobacterium leprae genome reveals medieval English red squirrels as animal leprosy host

    05/19/2024 6:15:16 AM PDT · by SunkenCiv · 14 replies
    Current Biology ^ | May 03, 2024 | Christian Urban et al
    Leprosy, one of the oldest recorded diseases in human history, remains prevalent in Asia, Africa, and South America, with over 200,000 cases every year.1,2 Although ancient DNA (aDNA) approaches on the major causative agent, Mycobacterium leprae, have elucidated the disease’s evolutionary history,3,4,5 the role of animal hosts and interspecies transmission in the past remains unexplored. Research has uncovered relationships between medieval strains isolated from archaeological human remains and modern animal hosts such as the red squirrel in England.6,7 However, the time frame, distribution, and direction of transmissions remains unknown. Here, we studied 25 human and 12 squirrel samples from two...
  • National Organization For Women Faces Criticism For Hypocrisy In Stance On Trans Athletes

    05/19/2024 5:37:59 AM PDT · by Libloather · 23 replies
    State of the Union ^ | 5/16/24 | Evelyn Thomas
    Skateboarder Taylor Silverman criticized the National Organization for Women for claiming advocacy for fairness in women’s sports is white supremacy. Silverman said this was a desperate attempt to scare people into silence and erase minority women’s experiences. “I take the National Organization for Women claiming that fairness in women’s sports is White supremacy about as seriously as I take them claiming men can be women,” Silverman stated. “They are blinded by this lie and desperate to scare people into silence. Men in women’s sports impacts all women, including minorities that the National Organization for Women seemingly want to erase to...
  • No driving on the weekends?

    05/19/2024 5:37:03 AM PDT · by MtnClimber · 54 replies
    American Thinker ^ | 19 May, 2024 | Eric Utter
    A bad move from a totalitarian-minded leftist leader in Germany is sure to give Joe Biden ideas. Germany’s transport minister (and progressive politician), Volker Wissing, last month vowed to ban driving on weekends to meet Germany's climate-related goals. It's either do that or else he wants the ruling coalition to pass more restrictions within the Climate Protection Act come July. According to the German newspaper BILD, as cited by Politico, Wissing penned a letter to the coalition’s parliamentary group leaders, in which he bemoaned the fact that the reforms haven’t yet been approved. Wissing, whose initials are ironically those of...
  • The Truth about the Abortion Pill: You won’t find it in Planned Parenthood’s annual report. But it is worth knowing

    05/18/2024 8:42:03 PM PDT · by SeekAndFind · 7 replies
    American Thinker ^ | 05/18/2024 | Susan Cianco
    Planned Parenthood’s latest annual report covering its “services” for the 2022–2023 fiscal year should be eye-opening for many.The largest abortion chain in the U.S. received nearly 700 million of our tax dollars.It committed 392,715 abortions.And it claimed that “863,000 users accessed — an authoritative source for abortion information from Planned Parenthood and independent clinics — from Planned Parenthood’s websites between July 2022–June 2023.” This means that Planned Parenthood helped nearly one million women find abortion services when it could not provide them.Seventy percent of the report is focused on abortion: killing a preborn baby as “healthcare” or a “right,”...
  • Antarctica had a rainforest 90 million years ago.

    05/18/2024 8:10:49 PM PDT · by SeekAndFind · 39 replies
    History Facts ^ | 05/17/2024
    It’s difficult to comprehend within our limited, double-digit life spans, but Earth is a dynamic planet that is constantly changing. The continents have crashed together and separated a handful of times now (Pangaea is the latest supercontinent, but not the only one), and the planet’s atmosphere, oceans, and orbit are all temporary and movable. Take, for instance, Antarctica, arguably the most inhospitable place on the planet. Not long ago (geologically speaking), the icy continent wasn’t frozen at all. In fact, it was filled with temperate rainforests teeming with life. Some 90 million years ago, during the Cretaceous Period — the...