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Keyword: jwst

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  • 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...
  • 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...
  • Astronomers Discover Something Strange About The Oldest 'Dead' Galaxy In The Universe

    03/07/2024 9:13:15 AM PST · by Red Badger · 16 replies
    The Debrief ^ | MARCH 7, 2024 | MJ BANIAS
    Astronomers using the James Webb Space Telescope (JWST) have made a groundbreaking discovery: a galaxy that ceased forming new stars over 13 billion years ago, making it the oldest ‘dead’ galaxy ever observed. The galaxy, which existed a mere 700 million years after the Big Bang, is odd by galactic standards. Now, based on recent findings, it’s also challenging our understanding of early galaxy evolution. In research led by Tobias J. Looser and an international team of astronomers, the James Webb Space Telescope (JWST) has discovered an ancient quiescent galaxy. At a redshift of z=7.3, it is the oldest galaxy...
  • The Big Bang never happened – so what did?...Cosmic evolution without mythology [Part 1]

    01/12/2024 7:02:41 PM PST · by Red Badger · 40 replies
    Asia Times ^ | DECEMBER 3, 2023 | By ERIC LERNER
    Whirlpool Galaxy, photographed by the Webb Space Telescope. Photo: NASA ESA Webb / A Adamo ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Introduction by Asia Times Science Editor Jonathan Tennenbaum In September Eric Lerner created a sensation with his Asia Times article, “Saying goodbye to the Big Bang,” arguing that the Big Bang theory is contradicted by an overwhelming mass of astronomical evidence accumulated over decades, including recent data from NASA’s James Webb Space Telescope. Eric Lerner ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The data forced even a pair of hitherto staunch advocates of the Big Bang, the well-known astrophysicists Adam Frank and Marcelo Gleiser, to admit that something must be...
  • Fusion from filaments on Earth and in the cosmos...Part 2 of ‘The Big Bang never happened – so what did?’

    01/12/2024 7:02:52 PM PST · by Red Badger · 3 replies
    Asia Times ^ | DECEMBER 11, 2023 | By ERIC LERNER
    The Orion: A molecular cloud shows cosmic filamentary structures where stars are being born. Image: ESA / Herschel / Ph. André, D Polychroni, A. Roy, V Könyves, N Schneider for the Gould Belt survey Key Program ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In the first part of this series, we saw that electromagnetic processes in plasmas – electrically conducting gases – could, over trillions of years, produce the giant filaments that we see today as the largest structures in the universe. This happened without a Big Bang, without dark energy or dark matter, based on processes that we observe here on Earth in the laboratory...
  • Stars alone can’t explain black holes, JWST data reveals

    01/17/2024 7:00:19 AM PST · by Red Badger · 13 replies
    bigthink.com ^ | JANUARY 17, 2024 | Ethan Siegel
    Today, supermassive black holes and their host galaxies tell a specific story in terms of mass. But JWST reveals a different story early on. primordial black holes The overdense regions that the Universe was born with grow and grow over time, but are limited in their growth by both the initial small sizes of the overdensities and also by the presence of radiation that's still energetic, which prevents structure from growing any faster. It takes tens-to-hundreds of millions of years to form the first stars; clumps of matter exist long before that, however, and some may directly collapse to form...
  • NASA’s Webb Finds Signs of Possible Aurorae on Isolated Brown Dwarf

    01/10/2024 12:30:19 AM PST · by Red Badger · 13 replies
    NASA ^ | JAN 09, 2024 | NASA Webb Telescope Team
    Infrared emission from methane suggests atmospheric heating by auroral processes. Astronomers using NASA’s James Webb Space Telescope have found a brown dwarf (an object more massive than Jupiter but smaller than a star) with infrared emission from methane, likely due to energy in its upper atmosphere. This is an unexpected discovery because the brown dwarf, W1935, is cold and lacks a host star; therefore, there is no obvious source for the upper atmosphere energy. The team speculates that the methane emission may be due to processes generating aurorae. These findings are being presented at the 243rd meeting of the American...
  • NASA’s Webb Stuns With New High-Definition Look at Exploded Star

    12/12/2023 1:06:36 PM PST · by Red Badger · 19 replies
    NASA ^ | NASA Webb Telescope Team
    Mysterious features hide in near-infrared light Like a shiny, round ornament ready to be placed in the perfect spot on a holiday tree, supernova remnant Cassiopeia A (Cas A) gleams in a new image from NASA’s James Webb Space Telescope. As part of the 2023 Holidays at the White House, First Lady of the United States Dr. Jill Biden debuted the first-ever White House Advent Calendar. To showcase the “Magic, Wonder, and Joy” of the holiday season, Dr. Biden and NASA are celebrating with this new image from Webb. While all is bright, this scene is no proverbial silent night....
  • NASA’s Webb Reveals New Features in Heart of Milky Way

    11/22/2023 7:05:06 AM PST · by Red Badger · 24 replies
    NASA ^ | NOV 20, 2023
    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*. Image: Sagittarius C (NIRCam) The NIRCam (Near-Infrared Camera) instrument on NASA’s James Webb Space Telescope’s reveals a portion of the Milky Way’s dense core in a new light. An estimated 500,000 stars shine in this image of the Sagittarius C (Sgr C) region, along with some as-yet unidentified...
  • In 2009, a Massive Star Vanished. JWST Might Have Figured Out What Happened.

    10/05/2023 11:56:59 AM PDT · by Red Badger · 18 replies
    Science Alert ^ | 05 October 2023 | By BRIAN KOBERLEIN, UNIVERSE TODAY
    Illustration of how a failed supernova can become a black hole. (P. Jeffries/STScI/NASA/ESA) In 2009 a giant star 25 times more massive than the Sun simply…vanished. Okay, it wasn't quite that simple. It underwent a period of brightening, increasing in luminosity to a million Suns, just as if it was ready to explode into a supernova. But then it faded rather than exploding. And when astronomers tried to see the star, using the Large Binocular Telescope (LBT), Hubble, and the Spitzer space telescope, they couldn't see anything. The star, known as N6946-BH1, is now considered a failed supernova. The BH1...
  • Astronomy Picture of the Day - Ringed Ice Giant Neptune

    08/19/2023 12:18:13 PM PDT · by MtnClimber · 19 replies
    NASA ^ | 19 Aug, 2023 | Image Credit: NASA, ESA, CSA, STScI, NIRCam
    Explanation: Ringed ice giant Neptune lies near the center of this sharp near-infrared image from the James Webb Space Telescope. The dim and distant world is the farthest planet from the Sun, about 30 times farther away than planet Earth. But in the stunning Webb view, the planet's dark and ghostly appearance is due to atmospheric methane that absorbs infrared light. High altitude clouds that reach above most of Neptune's absorbing methane easily stand out in the image though. Coated with frozen nitrogen, Neptune's largest moon Triton is brighter than Neptune in reflected sunlight, seen at the upper left sporting...
  • James Webb Space Telescope reveals the colorful Ring Nebula in exquisite detail (photos, video)

    08/05/2023 3:19:28 AM PDT · by Ezekiel · 29 replies
    Space.com ^ | August 3, 2023 | By Robert Lea
    The James Webb Space Telescope has imaged the Ring Nebula as a glowing green and purple eye, presenting the familiar astronomical object in an altogether new light. Aside from its stunning aesthetic value, the James Webb Space Telescope (JWST) images show the Ring Nebula, also known as Messier 57 (M57), located around 2,200 light-years away, in intricate detail that will surprise even astronomers who are familiar with the object.Located in the Lyra constellation, the Ring Nebula is a popular target for space enthusiasts as its donut-shaped ring of glowing gas and dust is visible even with small backyard telescopes throughout...
  • Stunning New JWST Anniversary Image Shows Baby Stars Sparking to Life

    07/13/2023 9:25:34 AM PDT · by Red Badger · 15 replies
    Science Alert ^ | 13 July 2023 | By MICHELLE STARR
    A closeup of the Rho Ophiuchi cloud complex, imaged by JWST. (NASA, ESA, CSA, STScI, K. Pontoppidan/STScI, A. Pagan/STScI) *************************************************** A glittering treasure trove of baby stars hidden in the thick dust of their nursery is revealed in a stunning new image from the James Webb Space Telescope. To celebrate its first successful year of operations, the JWST has turned its honeycomb eye to the Rho Ophiuchi cloud complex some 390 light-years away, peering through the thick shroud to the bright star formation occurring therein. It's one of the things at which the telescope truly excels, its infrared vision detecting...
  • JWST's Hunt for Habitable Exoplanets Finds Disappointment, Again

    06/24/2023 7:06:52 AM PDT · by SunkenCiv · 25 replies
    Scientific American ^ | June 21, 2023 | Alexandra Witze, Nature magazine
    For the second time, the James Webb Space Telescope (JWST) has looked for and failed to find a thick atmosphere on an exoplanet in on one of the most exciting planetary systems known. Astronomers report today that there is probably no tantalizing atmosphere on the planet TRAPPIST-1 c, just as they reported months ago for its neighbour TRAPPIST-1 b.There is still a chance that some of the five other planets in the TRAPPIST-1 system might have thick atmospheres containing geologically and biologically interesting compounds such as carbon dioxide, methane or oxygen. But the two planets studied so far seem to...
  • A star-planet system with a COHERENT radio signal from an AURORA

    05/25/2023 6:20:17 AM PDT · by SunkenCiv · 33 replies
    YouTube ^ | 13 days ago | Dr. Becky
    A star-planet system with a COHERENT radio signal from an AURORA | 10:26Dr. Becky | 579K subscribers | 133K views | 13 days ago
  • James Webb Telescope unveils complex rings around young star

    05/09/2023 12:56:34 PM PDT · by Red Badger · 16 replies
    UPI ^ | MAY 9, 2023 / 12:23 PM | By Patrick Hilsman
    Researchers using NASA's James Webb Space Telescope have discovered multiple debris rings within a previously discovered ring around the young star Fomalhaut. Photo Courtesy of NASA May 9 (UPI) -- Researchers using NASA's James Webb Space Telescope observed multiple debris rings surrounding a young star. The James Webb Telescope's Mid-Infrared Instrument, which is designed to capture very long wavelengths of light, found three nested belts surrounding the Fomalhaut star, out to a distance of up to 14 billion miles, NASA said Monday. Observations by NASA's Infrared Astronomical Satellite first discovered Fomalhuat's dust ring, the first asteroid belt seen outside of...
  • Webb adds another ringed world with new image of Uranus...Webb’s infrared image highlights the planet’s dramatic rings and dynamic atmosphere.

    04/07/2023 12:34:34 PM PDT · by Red Badger · 24 replies
    ESA - Webb ^ | 6 April 2023 | Staff
    Webb’s infrared image highlights the planet’s dramatic rings and dynamic atmosphere. This zoomed-in image of Uranus, captured by Webb’s Near-Infrared Camera (NIRCam) on 6 February 2023, reveals stunning views of the planet’s rings. The planet displays a blue hue in this representative-colour image, made by combining data from two filters (F140M, F300M) at 1.4 and 3.0 microns, shown here as blue and orange, respectively. On the right side of the planet is an area of brightening at the pole facing the Sun, known as a polar cap. This polar cap is unique to Uranus because it is the only planet...
  • Rings around Uranus! James Webb Space Telescope captures stunning image of ice giant (photo, video)

    04/07/2023 8:43:17 AM PDT · by BenLurkin · 48 replies
    space.com ^ | Robert Lea
    The James Webb Space Telescope (JWST) has captured an amazing image of Uranus, showing in great detail the ice giant's ring system, its brightest moons and its dynamic atmosphere. The new observation, made on Feb. 6, follows a similarly stunning photo JWST captured recently of the solar system's other ice giant, Neptune. The new Uranus image shows 11 of the planet's 13 known rings, some of which are so bright that they blend together somewhat. What will really astound astronomers, however, is the fact that JWST's Near Infrared Camera (NIRCam) instrument is sensitive enough to have captured the innermost two...
  • JWST Catches Sight of a Rare Star on The Brink of Going Supernova

    03/16/2023 9:04:32 AM PDT · by Red Badger · 16 replies
    Science Alert ^ | 16 March 2023 | By MICHELLE STARR
    JWST's new image of WR 124 and its nebula. (NASA, ESA, CSA, STScI, Webb ERO Production Team) There's scintillating beauty to be found in cosmic death. In a new image from the JWST, the spectacular final throes of a star nearing the end of its life are revealed in all their intricate detail. Located in the constellation Sagittarius, the star WR 124 is what's known as a Wolf-Rayet, which are rarely seen in the Milky Way. That's because only certain stars turn into Wolf-Rayets, and even then their time in that phase is so short; in just a few hundred...
  • James Webb Space Telescope spots galaxy from early universe rich in star formation

    03/08/2023 8:02:39 AM PST · by Red Badger · 12 replies
    SPACE.com ^ | March 8, 2023 | By Samantha Mathewson
    'We found this galaxy to be super-chemically abundant, something none of us expected.' A gravitationally lensed view of a ring-shaped slice of the galaxy SPT0418-47, as seen by the ALMA array in Chile. Recent observations by NASA's James Webb Space Telescope reveal that the galaxy has a satellite that's rich in star formation. A gravitationally lensed view of a ring-shaped slice of the galaxy SPT0418-47, as seen by the ALMA array in Chile. Recent observations by NASA's James Webb Space Telescope reveal that the galaxy has a satellite that's rich in star formation. (Image credit: ALMA (ESO/NAOJ/NRAO), Rizzo et al.)...