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Keyword: astronomy

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  • 'Once-in-a-lifetime' exploding star expected to be visible before October

    05/17/2024 9:01:45 AM PDT · by Red Badger · 11 replies
    UPI ^ | May 15, 2024 | Brian Lada, Accuweather.com
    The celestial wonders of April's solar eclipse and the mesmerizing dance of last weekend's aurora borealis captivated millions, yet the cosmos has an even more elusive spectacle in store. Before the year's end, the night sky will unveil an astronomical phenomenon so extraordinary that it eclipses the rarity of both these events combined. A blazingly bright event known as a nova, a light show that happens approximately once every 80 years, is expected to be visible in the coming months. "This could be a once-in-a-lifetime viewing opportunity," NASA said. An animation showing a nova of a white dwarf that is...
  • MIT Astronomers Say They Have Discovered a Planet Current Theories Can't Explain

    05/17/2024 8:27:44 AM PDT · by Red Badger · 18 replies
    The Debrief ^ | May 17, 2024 | Christopher Plain
    Around a star in our Milky Way galaxy, astronomers have discovered an extremely low-density planet that is as light as cotton candy. The new planet, named WASP-193b, appears to dwarf Jupiter in size, yet it is a fraction of its density. CREDIT: K. Ivanov ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A team of astronomers from the Massachusetts Institute of Technology (MIT) say they have discovered a distant planet that they can’t explain with current planet evolutionary theories. The newly discovered WASP-193b is a gas giant 50 percent larger than Jupiter, the largest gas giant in our solar system. However, it is only one-tenth as dense,...
  • Astronomy Picture of the Day - Aurora Georgia

    05/16/2024 11:38:39 AM PDT · by MtnClimber · 8 replies
    NASA ^ | 16 May, 2024 | Image Credit & Copyright: Wright Dobbs
    Explanation: A familiar sight from Georgia, USA, the Moon sets near the western horizon in this rural night skyscape. Captured on May 10 before local midnight, the image overexposes the Moon's bright waxing crescent at left in the frame. A long irrigation rig stretches across farmland about 15 miles north of the city of Bainbridge. Shimmering curtains of aurora shine across the starry sky, definitely an unfamiliar sight for southern Georgia nights. Last weekend, extreme geomagnetic storms triggered by the recent intense activity from solar active region AR 3664 brought epic displays of aurora, usually seen closer to the poles,...
  • Hidden in the Halo: MIT Researchers Discover the Universe’s Oldest Stars

    05/16/2024 9:53:05 AM PDT · by Red Badger · 24 replies
    Scitech Daily ^ | May 16, 2024 | JENNIFER CHU, MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    MIT astronomers discovered three of the oldest stars in the universe, and they live in our own galactic neighborhood. The stars are in the Milky Way’s “halo” — the cloud of stars that envelopes the main galactic disk — and they appear to have formed between 12 and 13 billion years ago, when the very first galaxies were taking shape. Credit: Serge Brunier; NASA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Astronomers discovered three ancient stars circling the Milky Way’s halo, formed 12-13 billion years ago. MIT researchers have discovered three of the oldest stars in the universe, and they happen to live in our own...
  • The Sun's Most Powerful Flare in Seven Years Just Erupted

    05/16/2024 7:54:47 AM PDT · by absalom01 · 22 replies
    Science Alert ^ | May 16, 2024 | MICHELLE STARR
    A solar flare measured at X8.7 on the strength scale just emerged from AR 3664, the sunspot region responsible for last weekend's solar storms that sparked vivid auroras.That's the most powerful solar flare of the current cycle, absolutely the most powerful since 2017, and comfortably within the top 20 solar flares ever measured.As AR 3664 made its way toward the edge of the Sun's disk, it wasn't just the X8.7 flare on May 14 that erupted from the solar limb. On May 15, an X3.4 flare followed suit, suggesting that the giant sunspot region is going to continue its party...
  • European Space Agency refuses to name Israeli in sensational discovery

    05/16/2024 6:11:46 AM PDT · by Eleutheria5 · 15 replies
    Ynet ^ | 13/5/24 | Elad Zeret
    Just two weeks ago, the European Space Agency announced the discovery of a new black hole, the heaviest on the Milky Way, 33 times bigger than the Sun and 2,000 light years from Earth. Tel Aviv University’s Prof. Tsevi Mazeh, who was recently awarded the Israel Prize in physics, is among those responsible for the European Gaia spacecraft’s discovery. But if you ask him how excited he was that week, in which he both learned of his Israel prize award and his research on the new black was published, he’ll swiftly answer “The Israel prize wins bigtime.” “I cried a...
  • Astronomy Picture of the Day - AR 3664 at the Sun's Edge

    05/15/2024 2:14:37 PM PDT · by MtnClimber · 9 replies
    NASA ^ | 15 May, 2024 | Image Credit & Copyright: Sebastian Voltmer
    Explanation: What did the monster active region that created the recent auroras look like when at the Sun's edge? There, AR 3664 better showed its 3D structure. Pictured, a large multi-pronged solar prominence was captured extending from chaotic sunspot region AR 3664 out into space, just one example of the particle clouds ejected from this violent solar region. The Earth could easily fit under this long-extended prominence. The featured image was captured two days ago from this constantly changing region. Yesterday, the strongest solar flare in years was expelled (not shown), a blast classified in the upper X-class. Ultraviolet light...
  • WARP DRIVE Breakthrough Could Enable Constant-Velocity Subluminal Travel, Physics Team Says

    05/15/2024 8:45:53 AM PDT · by Red Badger · 63 replies
    The Debrief ^ | May 15, 2024 | Micah Hanks
    A novel warp drive concept that can function without any need for hypothesized exotic or negative forms of energy has been unveiled in a groundbreaking new study by leading propulsion researchers. Dubbed the “Constant-Velocity Subluminal Warp Drive,” the concept, developed by physicists with the Advanced Propulsion Laboratory at the New York-based think tank Applied Physics and from the University of Alabama in Huntsville, offers a theoretical new means of propulsion for space travel that conforms to general relativity, allowing it to operate at constant subluminal speeds with no need for unphysical forms of matter outlined in past concepts. According to...
  • Report signals concern for Artemis space missions [3:04]

    05/13/2024 8:40:03 PM PDT · by SunkenCiv · 12 replies
    YouTube ^ | May 10, 2024 | WKMG News 6 ClickOrlando
    Report signals concern for Artemis space missions | 3:04WKMG News 6 ClickOrlando | 436K subscribers | 7,082 views | May 10, 2024
  • James Webb Space Telescope Data Reveals New Insights Into the Brightest GAMMA RAY BURST EVER DETECTED

    05/13/2024 8:00:00 AM PDT · by Red Badger · 8 replies
    The Debrief ^ | May 13, 2024 | Micah Hanks
    X-ray image of GRB221009A (Credit: NASA/Swift) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Observations by the James Webb Space Telescope are offering new clues about the nature of a massive supernova associated with GRB 221009A, the brightest gamma-ray burst astronomers have ever recorded. The new research confirms the presence of a supernova linked to this highly energetic source of gamma rays and reveals its comparatively low production of radioactive nickel, findings that challenge our currently accepted models involving these powerful events. Astronomers hope the new findings made possible by NASA’s premier space science observatory will also help to offer unique new views into the processes that...
  • Astronomy Picture of the Day - AR 3664: Giant Sunspot Group

    05/11/2024 1:03:20 PM PDT · by MtnClimber · 12 replies
    NASA ^ | 11 May, 2024 | Image Credit & Copyright: Franco Fantasia & Guiseppe Conzo (Gruppo Astrofili Palidoro)
    Explanation: Right now, one of the largest sunspot groups in recent history is crossing the Sun. Active Region 3664 is not only big -- it's violent, throwing off clouds of particles into the Solar System. Some of these CMEs are already impacting the Earth, and others might follow. At the extreme, these solar storms could cause some Earth-orbiting satellites to malfunction, the Earth's atmosphere to slightly distort, and electrical power grids to surge. When impacting Earth's upper atmosphere, these particles can produce beautiful auroras, with some auroras already being reported unusually far south. Pictured here, AR3664 and its dark sunspots...
  • Rare solar storm to make northern lights visible to most of US: Here’s how to see it

    05/10/2024 5:28:28 PM PDT · by bitt · 67 replies
    https://nypost.com ^ | 5/10/2024 | Ronny Reyes
    A powerful solar storm will make the northern lights visible to most of America — including the New York City area — Friday night, but you’ll need to get out of the city if you want a chance at seeing the auroras. The National Oceanic and Atmospheric Administration (NOAA) has upgraded the looming geomagnetic solar storm to a level 4, which is capable of disrupting America’s electrical grid and making the northern lights visible as far south as Alabama. The key to witnessing the natural phenomena will depend on the amount of cloud coverage and light population, making upstate New...
  • 4.5 X Class

    05/06/2024 10:59:26 AM PDT · by Orlando · 10 replies
    Youtube ^ | 5-6-24 | Orlando
    "This was a powerful blast - More info to come on what sort of impact we should expect here on earth! This marks the 4th X-flare since May 3rd (X1.6, X1.2, X1.2, X4.5), making AR3663 the most active sunspot of Solar Cycle 25 so far."
  • Scientists discover remains of a 'buried planet' deep inside EARTH

    05/07/2024 6:21:35 AM PDT · by Red Badger · 67 replies
    Daily Mail UK ^ | May 6, 2024 | MATTHEW PHELAN - SENIOR SCIENCE REPO
    A new study of metal ore deep inside the moon is offering fresh evidence that Earth's natural satellite was formed by an ancient planet crashing into Earth long ago. This long-theorized interplanetary collision — which scientists believe occurred some 4.5 billion years ago — saw a Mars-sized planet named 'Theia' slice itself into hot lava fragments upon impact with the Earth. While some of Theia's planetary remains appear to be buried as dense and massive 'blobs' deep underneath Africa and the Pacific Ocean's tectonic plates, scientists said evidence for where the rest of Theia went after this crash had remained...
  • Researchers just found more than 1,000 new solar system objects hiding in plain sight

    05/05/2024 8:53:28 PM PDT · by SunkenCiv · 22 replies
    Live Science ^ | April 29, 2024 | Harry Baker
    Our cosmic neighborhood is littered with asteroids. Scientists have already discovered more than 1.3 million of the space rocks, most of which lie in the asteroid belt between Mars and Jupiter, according to NASA. There are likely hundreds of thousands if not millions more asteroids waiting to be discovered. However, these remaining space rocks are likely the smallest and therefore faintest bodies in the solar system, which makes them very hard to spot.In the new study, published March 15 in the journal Astronomy and Astrophysics, researchers highlighted 1,031 previously uncategorized asteroids from archival Hubble data. They were identified by artificial...
  • Asteroid that exploded over Berlin was fastest-spinning space rock ever recorded

    05/05/2024 8:21:45 AM PDT · by SunkenCiv · 21 replies
    Live Science ^ | May 2, 2024 | Sascha Pare
    Scientists have calculated the rotational speed of asteroid 2024 BX1, which exploded over Berlin earlier this year, by letting it trail in images of the sky. It turns out, 2024 BX1 was spinning faster than any other near-Earth object ever seen...The space rock, dubbed 2024 BX1, turned into a fireball and exploded over Berlin in the early hours of Jan. 21. Although small asteroids on collision courses with Earth are typically detected only when they crash into the atmosphere, scientists spotted this one roughly three hours before impact.That's not the only way 2024 BX1 was unusual, according to a paper...
  • Astronomy Picture of the Day - Temperatures on Exoplanet WASP-43b

    05/03/2024 2:09:59 PM PDT · by MtnClimber · 9 replies
    NASA ^ | 3 May, 2024 | Illustration Credit: NASA, ESA, CSA, Ralf Crawford (STScI) Science: Taylor Bell (BAERI), Joanna Bars
    Explanation: A mere 280 light-years from Earth, tidally locked, Jupiter-sized exoplanet WASP-43b orbits its parent star once every 0.8 Earth days. That puts it about 2 million kilometers (less than 1/25th the orbital distance of Mercury) from a small, cool sun. Still, on a dayside always facing its parent star, temperatures approach a torrid 2,500 degrees F as measured at infrared wavelengths by the MIRI instrument on board the James Webb Space Telescope. In this illustration of the hot exoplanet's orbit, Webb measurements also show nightside temperatures remain above 1,000 degrees F. That suggests that strong equatorial winds circulate the...
  • James Webb Space Telescope Maps Weather on Planet 280 Light Years Away, Raising Hopes for Biosignature Detection

    05/02/2024 8:58:50 AM PDT · by Red Badger · 23 replies
    (NASA, ESA, CSA, Ralf Crawford (STScI)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Scientists using NASA’s James Webb Space Telescope (JWST) have successfully mapped the weather on a planet 280 light years away. Earlier detections made by older space telescopes had hinted at the presence of an atmosphere on WASP-43b, however, the instruments aboard the JWST are the first to measure the actual weather in the planet’s atmosphere. “With Hubble, we could clearly see that there is water vapor on the dayside. Both Hubble and Spitzer suggested there might be clouds on the nightside,” explained Taylor Bell, a researcher from the Bay Area Environmental Research Institute...
  • Sun unleashes near X-class solar flare: M9.5 eruption sparks radio blackouts across the Pacific (video)

    05/01/2024 7:59:12 AM PDT · by Red Badger · 31 replies
    Space.com ^ | May 1, 2024 published 2 hours ago | Daisy Dobrijevic
    The solar flare is the most powerful eruption from sunspot region R3654 yet. Last night (April 30), the sun released an extremely powerful solar flare triggering widespread radio blackouts across the Pacific region. The flare peaked at 7:46 p.m. EDT (2346 GMT) and ended shortly after at 7:58 p.m. EDT (2358). Solar flares are eruptions from the sun's surface that emit intense bursts of electromagnetic radiation. They are created when magnetic energy builds up in the solar atmosphere and is released. Solar flares are categorized by size into lettered groups, with X-class being the most powerful. Then there are M-class...
  • Stanford Scientists Have Produced the First Complete Picture of an Elusive Quasiparticle

    04/30/2024 11:13:07 AM PDT · by Red Badger · 20 replies
    Scitech Daily ^ | APRIL 28, 2022 | GLENNDA CHUI, SLAC NATIONAL ACCELERATOR LABORATORY
    Scientists have taken a significant step in understanding these whirling quasiparticles and putting them to work in future semiconductor technologies. Researchers reported that they have imaged the exciton’s electron and hole for the first time, revealing how excitons may be trapped in dense, stable arrays. According to the scientists, the findings have significant implications for the development of various future technologies as well as the quest to better understand excitons. The findings were published on March 8th, 2022, in the journal Nature by researchers from the Department of Energy’s SLAC National Accelerator Laboratory, Stanford University, and the Okinawa Institute for...