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Astronomy (General/Chat)

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  • Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - Young Suns of NGC 7129

    12/01/2025 11:05:45 AM PST · by MtnClimber · 9 replies
    NASA ^ | 16 Oct, 2025 | Image Credit & Copyright: Timothy Martin
    Explanation: Young suns still lie within dusty NGC 7129, some 3,000 light-years away toward the royal constellation Cepheus. While these stars are at a relatively tender age, only a few million years old, it is likely that our own Sun formed in a similar stellar nursery around five billion years ago. Notable in the sharp image are the lovely bluish dust clouds that reflect the youthful starlight. But the compact, deep red crescent shapes are also markers of energetic, young stellar objects. Known as Herbig-Haro objects, their shape and color are characteristic of glowing hydrogen gas shocked by jets streaming...
  • Asteroid 433 Eros Is Back After A Century—And You Can See It as It Zooms Past Earth This Weekend!

    11/30/2025 4:41:10 PM PST · by Red Badger · 23 replies
    Daily Galaxy ^ | November 29, 2025 | Kouceila Rekik
    A century after its discovery, asteroid 433 Eros is back—gliding past Earth this weekend in a rare, mesmerizing show! The legendary asteroid 433 Eros, a rocky world that once transformed our understanding of near-Earth space, is making its long-awaited return. This weekend, skywatchers will get a rare chance to glimpse this celestial traveler as it makes a close approach to our planet. The event will be live-streamed globally, allowing enthusiasts to witness history in real time through virtualtelescope.eu. For astronomers and casual stargazers alike, it’s a rendezvous with one of the most storied objects in the solar system. A Historic...
  • Astronomy Picture of the Day - The Surface of Titan from Huygens

    11/30/2025 12:09:36 PM PST · by MtnClimber · 15 replies
    NASA ^ | 30 Nov, 2025 | Image Credit: ESA, NASA, JPL, U. Arizona, Huygens Lander
    Explanation: If you could stand on Titan -- what would you see? The featured color view from Titan gazes across an unfamiliar and distant landscape on Saturn's largest moon. The scene was recorded by ESA's Huygens probe in 2005 after a 2.5-hour descent through a thick atmosphere of nitrogen laced with methane. Bathed in an eerie orange light at ground level, rocks strewn about the scene could well be composed of water and hydrocarbons frozen solid at an inhospitable temperature of negative 179 degrees C. The large light-toned rock below and left of center is only about 15 centimeters across...
  • Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - Rocket Launch Plume over Tucson

    11/30/2025 10:26:37 AM PST · by MtnClimber · 5 replies
    NASA ^ | 15 Oct, 2025 | Image Credit & Copyright: Wayne Showalter
    Explanation: Yes, but can your sunset do this? Looking west from Tucson, Arizona, USA one day last month, the sunset sky looked strange when it briefly lit up with the plume of a rocket launched from California a few minutes earlier. Appearing at times like a giant space fish, the impressive rocket launch from Vandenberg Air Force Base near Lompoc, California, was so noticeable because it was backlit by the setting Sun. The Falcon 9 rocket successfully delivered to low Earth orbit 28 Starlink communications satellites. The plume from the first stage is seen on the right, while the soaring...
  • Astronomy Picture of the Day - Moon Games

    11/29/2025 3:25:03 PM PST · by MtnClimber · 9 replies
    NASA ^ | 29 Nov, 2025 | Image Credit & Copyright: Giorgia Hofer
    Explanation: This is not a screen from a video game. Nestled below the treeline, the small mountain church does look like it might be hiding from Moon though. In the well-composed telephoto snapshot, taken on November 23, the church walls are partly reflecting light from terrestrial flood lights. Of course, the Moon is reflecting light from the Sun. At any given time the Sun illuminates fully half of the Moon's surface, also known as the lunar dayside, but on that night only a sliver of its sunlit surface was visible. About three days after New Moon, the Moon was in...
  • Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - An Unusual Globule in IC 1396

    11/29/2025 1:57:56 PM PST · by MtnClimber · 6 replies
    NASA ^ | 14 Oct, 2025 | Image Credit & Copyright: Joachim Korb
    Explanation: Is there a monster in IC 1396? Known to some as the Elephant's Trunk Nebula, parts of gas and dust clouds of this star formation region may appear to take on foreboding forms, some nearly human. The only real monster here, however, is a bright young star too far from Earth to hurt us. Energetic light from this star is eating away the dust of the dark cometary globule near the top of the featured image. Jets and winds of particles emitted from this star are also pushing away ambient gas and dust. Nearly 3,000 light-years distant, the relatively...
  • NASA’s Voyager 1 Probe Will Reach One ‘Light Day’ from Earth Next Year, Marking Humanity’s Deepest Foray into the Cosmos

    11/28/2025 9:09:46 PM PST · by Red Badger · 38 replies
    The Debrief ^ | November 27, 2025 | Ryan Whalen·
    NASA’s Voyager 1 space probe will continue its almost half-century of service by delivering yet another milestone: by this time next year, it should have reached a distance of 1 light-day from Earth. Based on the most recent estimates, the revolutionary Voyager 1 space probe is expected to achieve the feat on November 15, 2026, continuing its reign as the farthest-travelled human-made object. After flying by Jupiter, Saturn, and Titan, the spacecraft continued its journey into interstellar space. The Speed of Light Based on present-day physics, scientists know the speed of light is the greatest speed at which anything in...
  • Baikonur Launchpad Damaged After Rocket Launch to ISS

    11/28/2025 5:35:20 PM PST · by Red Badger · 9 replies
    Russia’s Baikonur cosmodrome in Kazakhstan was damaged on Thursday following the launch of a manned Soyuz rocket to the International Space Station, the Roscosmos space agency said. The Soyuz MS-28, which was carrying Russian cosmonauts Sergei Kud-Sverchkov and Sergei Mikayev, along with NASA astronaut Chris Williams, took off from Baikonur at 12:27 Moscow time and successfully docked with the ISS later in the day. “Damage to several elements of the launch pad was detected,” Roscosmos said hours after the crew arrived at the ISS. “An assessment of the condition of the launch complex is currently underway.” The space agency said...
  • Crackle From Another World: NASA Rover Captures Lightning Sounds On Mars

    11/28/2025 3:01:27 PM PST · by Red Badger · 10 replies
    Dallas Express ^ | November 28, 2025 | Staff
    Scientists say they have captured the first direct acoustic evidence of lightning on Mars — tiny crackling electrical discharges triggered by swirling dust devils and storms, picked up by a microphone on NASA’s Perseverance rover. A French-led team reported in the journal Nature that it found 55 episodes of what it calls “mini lightning” — brief, static-like sparks inches long — hidden in 28 hours of rover audio recorded over nearly four Earth years. The faint pops and crackles, barely audible amid howling wind and dust grains pinging the microphone, occurred almost exclusively during the Red Planet’s dustiest, windiest days....
  • Astronomy Picture of the Day - NGC 6888: The Crescent Nebula

    11/28/2025 3:01:24 PM PST · by MtnClimber · 13 replies
    NASA ^ | 28 Nov, 2025 | Image Credit & Copyright: Greg Bass
    Explanation: NGC 6888, also known as the Crescent Nebula, is a about 25 light-years across, a cosmic bubble blown by winds from its central, massive star. This deep telescopic image includes narrowband image data, to isolate light from hydrogen and oxygen atoms. The oxygen atoms produce the blue-green hue that seems to enshroud the nebula's detailed folds and filaments. Visible within the nebula, NGC 6888's central star is classified as a Wolf-Rayet star (WR 136). The star is shedding its outer envelope in a strong stellar wind, ejecting the equivalent of the Sun's mass every 10,000 years. In fact, the...
  • Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - Lemmon Tree

    11/28/2025 1:17:11 PM PST · by MtnClimber · 7 replies
    NASA ^ | 13 Oct, 2025 | Image Credit & Copyright: Uroš Fink
    Explanation: The tree is not in danger. That's because the comet pictured just above it, Comet C/2025 A6 (Lemmon), is far in the distance, well away from the Earth. Comet Lemmon now continues to brighten as it arcs through the inner Solar System, even though it has passed its nearest to the Sun -- because it is now approaching the Earth. The comet will likely appear brightest when it is at its closest to the Earth next week, then closing to about half the Earth-Sun distance. Comet Lemmon may then be visible to the unaided eye, but it is more...
  • Scientists are baffled as a mysterious halo of red light appears over a small Italian town for the second time in 3 years

    11/28/2025 4:45:01 AM PST · by fruser1 · 17 replies
    UK Daily Mail ^ | 11/28/2025 | William Hunter
    An incredible image captures the bizarre UFO–like ring floating above Possagno, a tiny town in the foothills of the Italian Alps. The photograph was taken by photographer Valter Binotto, who watched as the glowing structure flashed in the sky at 10:45 local time on November 17. A photographer has captured a baffling image of a red UFO–like halo floating over the small Italian town of Possagno This ring is likely a structure known as an 'emission of light and very low–frequency perturbations due to electromagnetic pulse sources', or ELVEs for short. These are rings of red or green light created...
  • Astronomy Picture of the Day - Portrait of NGC 1055

    11/27/2025 12:37:53 PM PST · by MtnClimber · 7 replies
    NASA ^ | 27 Nov, 2025 | Image Credit & Copyright: John Hayes
    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 telltale pinkish star forming regions and young blue star clusters are scattered through winding dust lanes along the distant galaxy's thin disk. With a smattering of even more distant background galaxies, the deep...
  • Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - All the Water on Europa

    11/27/2025 10:43:07 AM PST · by MtnClimber · 10 replies
    NASA ^ | 12 Oct, 2025 | Illustration Credit & Copyright: Kevin Hand (JPL/Caltech), Jack Cook (Woods Hole Oceanographic Insti
    Explanation: How much of Jupiter's moon Europa is made of water? No one is sure, but probably a lot. Based on the Galileo probe data acquired during its exploration of the Jovian system from 1995 to 2003, Europa possesses a deep, global ocean of liquid water beneath a layer of surface ice. The subsurface ocean plus ice layer could descend over 100 kilometers in average depth. Adopting a high-end estimate of 100 kilometers depth, if all the water on Europa were gathered into a ball, it would have a radius of over 800 kilometers. To scale, this intriguing illustration compares...
  • Astronomy Picture of the Day - Globular Cluster M15 Deep Field

    11/26/2025 1:06:40 PM PST · by MtnClimber · 10 replies
    NASA ^ | 26 Nov, 2025 | Image Credit & Copyright: Alvaro Ibanez Perez
    Explanation: Stars, like bees, swarm around the center of bright globular cluster M15. The central ball of over 100,000 stars is a relic from the early years of our Galaxy, and continues to orbit the Milky Way's center. M15, one of about 150 globular clusters remaining, is noted for being easily visible with only binoculars, having at its center one of the densest concentrations of stars known, and containing a high abundance of variable stars and pulsars. The featured image of M15 was taken by combining very long exposures -- 122 hours in all -- and so brings up faint...
  • Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - Manicouagan Impact Crater from Space

    11/26/2025 10:22:47 AM PST · by MtnClimber · 6 replies
    NASA ^ | 11 Oct, 2025 | Image Credit: NASA, International Space Station Expedition 59
    Explanation: Orbiting 400 kilometers above Quebec, Canada, planet Earth, the International Space Station Expedition 59 crew captured this snapshot of the broad St. Lawrence River and curiously circular Lake Manicouagan on April 11, 2019. Right of center, the ring-shaped lake is a modern reservoir within the eroded remnant of an ancient 100 kilometer diameter impact crater. The ancient crater is very conspicuous from orbit, a visible reminder that Earth is vulnerable to rocks from space. Over 200 million years old, the Manicouagan crater was likely caused by the impact of a rocky body about 5 kilometers in diameter. Currently, there...
  • My Take On The “Coming Great Deception”

    11/26/2025 6:28:50 AM PST · by Red Badger · 64 replies
    100 Percent Fed Up ^ | November 25, 2025 | Staff
    The Bible tells us very clearly that there is coming in the future a “Deception” so great that even believers will be fooled by it. That’s not really up for debate. The only thing up for debate is (1) what is it, and (2) has it already started? I’m going to give you my opinion on both of those questions in this article and then I want to hear what YOU think! First I have to put this in context. Third years ago, if I would have tried to have a serious debate and discussion about whether “aliens” are real,...
  • New Evidence Points To Where Our Moon’s Parent Planet Came From

    11/25/2025 12:05:25 PM PST · by Red Badger · 31 replies
    Study Finds ^ | November 24, 2025 | Timo Hopp (Max Planck Institute for Solar System Research)
    Artist’s impression of the collision between the early Earth and Theia. Since Theia originated in the inner Solar System, in this perspective the Sun can be seen in the background. (Credit: MPS / Mark A. Garlick) In A Nutshell * Inner Solar System origins: By measuring iron isotopes in Moon rocks and meteorites, researchers determined Theia probably formed closer to the Sun than Earth did, not in the distant outer Solar System. * Identical twins: Earth and the Moon have virtually identical chemical signatures, but both fall outside the range of any meteorites we’ve found—suggesting they incorporated exotic material from...
  • Astronomy Picture of the Day - Comet Lemmon and the Milky Way

    11/25/2025 11:34:50 AM PST · by MtnClimber · 9 replies
    NASA ^ | 25 Nov, 2025 | Image Credit & Copyright: Lin Zixuan (Tsinghua U.)
    Explanation: What did Comet Lemmon look like when it was at its best? One example is pictured here, featuring three celestial spectacles all at different distances. The closest spectacle is the snowcapped Meili Mountains, part of the Himalayas in China. The middle marvel is Comet Lemmon near its picturesque best early this month, showing not only a white dust tail trailing off to the right but its blue solar wind-distorted ion tail trailing off to the left. Far in the distance on the left is the magnificent central plane of our Milky Way Galaxy, featuring dark dust, red nebula, and...
  • Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - 50 Light-years to 51 Pegasi

    11/25/2025 9:47:00 AM PST · by MtnClimber · 5 replies
    NASA ^ | 10 Oct, 2025 | Image Credit & Copyright: José Rodrigues
    Explanation: It's only 50 light-years to 51 Pegasi. That star's position is indicated in this snapshot from August 2025, taken on a night with mostly brighter stars visible above the dome at Observatoire de Haute-Provence in France. Thirty years ago, in October of 1995, astronomers Michel Mayor and Didier Queloz announced a profound discovery made at the observatory. Using a precise spectrograph, they had detected a planet orbiting 51 Peg, the first known exoplanet orbiting a sun-like star. Mayor and Queloz had used the spectrograph to measure changes in the star's radial velocity, a regular wobble caused by the gravitational...