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Keyword: catastrophism

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  • Neptune's Moons Are Caught in One of The Strangest Orbits Ever Seen

    07/10/2020 12:17:20 PM PDT · by Red Badger · 17 replies ^ | 10 JULY 2020 | DAVID NIELD
    (NASA/JPL-Caltech) ================================================================================= Life isn't always easy for astrophysicists: just when they've figured out another aspect of the patterns of movement in our Solar System, along come two of the moons of Neptune to mess everything up. The two moons in question are Naiad and Thalassa, both around 100 kilometres or 62 miles wide, which race around their planet in what NASA researchers are calling a "dance of avoidance". Their strange orbit was first detected by NASA researchers in November 2019. Compared with Thalassa, Naiad's orbit is tilted by about five degrees – it spends half of its time above Thalassa...
  • Idaho started shaking March 31. Why hasn’t it stopped? Geologists research Sawtooth fault

    07/08/2020 1:19:51 PM PDT · by Roman_War_Criminal · 24 replies
    Idaho Statesman ^ | 7/6/2020 | Natalia Gutierrez-Pinto & Nicole Blanchard
    The shaking started March 31. That’s when the Sawtooth mountain range in central Idaho trembled with a 6.5-magnitude earthquake — the second strongest ever recorded in Idaho. From that very moment, geologists rushed to the epicenter area — 45 miles west of Challis — to start collecting valuable information that could help them understand what happened. Three months later, the rumbling still hasn’t subsided as aftershocks continue to jar the area. But now scientists have a better idea of what may have led to the major earthquake — and it’s helping them uncover some other secrets buried under Idaho’s soil....
  • Young Volcanic Island Nishinoshima Belches Ash and Lava As It Grows in the Pacific

    07/07/2020 7:45:24 PM PDT · by BenLurkin · 19 replies
    SciTechDaily ^ | July 7, 2020 | Michael Carlowicz, NASA Earth Observatory
    A young volcanic island has been growing in the western Pacific Ocean since 2013. Since mid-June 2020, it has been going through a vigorous growth spurt. According to reports and aerial photographs from the Japan Coast Guard, activity at the volcano appeared to pick up in late May, spewing ash and lava with more vigor than in previous months. On July 3, the volcanic plume rose as high as 4700 meters (15,400 feet) above sea level; the next day, ash was detected as high as 8300 meters (27,200 feet), the highest altitude a plume has risen since the volcano poked...
  • A massive star in a far-off galaxy just disappeared, leaving behind no trace

    07/02/2020 11:11:46 AM PDT · by BenLurkin · 92 replies
    wion ^ | Jul 01, 2020
    A giant star which was under the observation of astronomers for over ten years has suddenly vanished. The star in question was located in a dwarf galaxy 75 million light-years away, and was one of the largest stars in the known universe. The star, which was 2.5 times brighter than the Sun, left no trace behind The star was located in a very far off galaxy, making its detection and observation very difficult. The astronomers observed it based on its signature, which was picked up and then analysed, instead of a direct observation. A highly unstable blue star, researchers picked...
  • On Behalf Of Environmentalists, I Apologize For The Climate Scare

    06/29/2020 7:47:02 PM PDT · by dynachrome · 60 replies
    Environmental Progress ^ | 6-29-2020 | Michael Shellenberger
    On behalf of environmentalists everywhere, I would like to formally apologize for the climate scare we created over the last 30 years. Climate change is happening. It’s just not the end of the world. It’s not even our most serious environmental problem. I may seem like a strange person to be saying all of this. I have been a climate activist for 20 years and an environmentalist for 30. But as an energy expert asked by Congress to provide objective expert testimony, and invited by the Intergovernmental Panel on Climate Change (IPCC) to serve as Expert Reviewer of its next...
  • New Evidence Supports Modern Greeks Having DNA of Ancient Mycenaeans

    06/28/2020 3:18:32 PM PDT · by SunkenCiv · 42 replies ^ | June 22, 2020 | Stavros Anastasiou
    New emerging DNA evidence suggests that living Greeks are indeed descendants of the ancient Mycenaeans, who ruled mainland Greece and the Aegean Sea from 1,600 BC to 1,200 BC. The proof comes from a study in which scientists analyzed the genes from the teeth of 19 people across various archaeological sites within mainland Greece and Mycenae. A total of 1.2 million letters of genetic code were compared to those of 334 people across the world. Genetic information was also compiled from a group of thirty modern Greek individuals in order to compare it to the ancient genomes. This allowed researchers...
  • Weird: Out of Nowhere, Something Just Rocked Earth’s Magnetic Field

    06/26/2020 7:45:35 AM PDT · by zeestephen · 59 replies
    Watts Up With That ^ | 25 June 2020 | Anthony Watts
    A GLOBAL MAGNETIC ANOMALY: On June 23rd, Earth’s quiet magnetic field was unexpectedly disturbed by a wave of magnetism that rippled around much of the globe. There was no solar storm or geomagnetic storm to cause the disturbance. So what was it?
  • Maybe We Can Tether Asteroids Together to Stop Them From Destroying Us All

    06/26/2020 7:01:47 AM PDT · by Red Badger · 13 replies ^ | Jun 23, 2020 | Jennifer Leman
    Researchers have proposed using a tether system to pull potentially hazardous asteroids off of their trajectories. For decades, researchers have proposed ways to protect Earth from asteroid impacts. In 2022, NASA's DART mission will test one such method: using a kinetic impactor to push a small asteroid off course. ======================================================================= Around the world, astronomers are scanning the skies for potentially hazardous asteroids that could come barreling toward Earth in the coming years, decades, and centuries. No pressure or anything. Astronomers have proposed some wild ways to knock these asteroids off course. Do we nuke it? Slam a spacecraft into...
  • Fall of the Roman Republic and rise of the Empire may have been triggered by a massive volcanic eruption in Alaska in 43 BC that set off a global climate shock leading to famine and unrest

    06/23/2020 2:49:29 AM PDT · by C19fan · 33 replies
    UK Daily Mail ^ | June 23, 2020 | Jonathan Chadwick
    Scientists say a massive volcanic eruption in Alaska more than 2,500 years ago triggered a global climate shock on the other side of the Earth that led to the fall of the Roman Republic. The eruption of Mount Okmok on an Alaskan island in the year 43 BC – an event known as 'Okmok II' – spewed ash particles that cooled the planet by shading incoming solar radiation. Scientists say this caused with a spell of extreme cold in the Mediterranean during the European summer – the second-coldest of the last 2,500 years.
  • Collision between black hole and 'mysterious object' puzzles astronomers

    06/23/2020 7:04:52 PM PDT · by BenLurkin · 43 replies
    CNET ^ | June 23, 2020 | Jackson Ryan
    On Aug. 14, 2019, a gravitational wave -- a massive ripple through the fabric of space-time -- washed over the Earth. The signal was one of the strongest ever seen by the gravitational wave scientists at the Laser Interferometer Gravitational-wave Observatory and Italy's Virgo observatory. After an alert was sent out moments after detection, teams of astronomers across the world turned their telescopes to the point in space that the wave emanated from. But their searches came up empty. No light, no X-rays, no infrared, no gamma rays. On Tuesday, researchers from the LIGO and Virgo collaborations detail their full...
  • Death from above? Fireball may have destroyed ancient Syrian village

    06/21/2020 9:53:35 AM PDT · by BenLurkin · 52 replies
    Live Science ^ | 20 June 2020 | Nola Taylor Redd
    13,000 years ago, something very bad seems to have occurred, leaving a layer of carbon suggesting dramatic fires. But for much of the last decade, scientists inspecting the remnants of the village have debated what happened, unable to decide whether the carbon formed during an airburst or during more mundane fires among the thatched huts. So Moore decided to reexamine the glass in more detail. His analysis of the glass composition matched a 2012 finding claiming an airburst had destroyed Abu Hureyra, suggesting that the villagers' bucolic lifestyle ended suddenly when one or more fragments from a passing comet exploded...
  • Natural fluid injections triggered Cahuilla earthquake swarm

    06/18/2020 8:58:10 PM PDT · by BenLurkin · 11 replies ^ | June 18, 2020 | Robert Perkins, California Institute of Technology
    A naturally occurring injection of underground fluids drove a four-year-long earthquake swarm near Cahuilla, California, according to a new seismological study that utilizes advances in earthquake monitoring with a machine-learning algorithm. In contrast to mainshock/aftershock sequences, where a large earthquake is followed by many smaller aftershocks, swarms typically do not have a single standout event. The Cahuilla swarm, as it is known, is a series of small temblors that occurred between 2016 and 2019 near Mt. San Jacinto in Southern California. To better understand what was causing the shaking, Ross and colleagues from Caltech, the United States Geological Survey (USGS),...
  • Mysterious Green Fireball Spotted Above Remote Australian Outback

    06/15/2020 7:53:58 PM PDT · by BenLurkin · 40 replies
    newsweek ^ | On 6/15/20 at 6:41 AM EDT | Aristos Georgiou
    Miners working in the Pilbara region spotted the strange object—which illuminated the clouds as it flew past—around 1 a.m. local time, with the glow lasting for so long that many were able to capture the event on their phones. Experts say that the object was probably not a piece of spacecraft debris falling to Earth, but rather a "fireball," which is a very bright meteor. "What we tend to see—when objects like space debris, or if it's a satellite burning up—what we tend to see is sort of like crackles and sparks. This is due to the fact that there...
  • Search for MH370 Revealed Ocean Crust Waves

    06/12/2020 11:32:16 PM PDT · by SunkenCiv · 7 replies
    Science News by American Geophysical Union ^ | 8 June 2020 | Kimberly M. S. Cartier
    The scans for MH370 revealed that the ocean crust rises and falls in waves that start at the Southeast Indian Ridge and continue outward. The ridge spreads about 35 millimeters in opposite directions every year, and the wave crests, where crust grew faster, are more than 100 kilometers long and repeat every 10-14 kilometers. The researchers estimated when each wave formed by comparing the bathymetry maps to independent measurements and models of the crust's magnetic field. ...Crustal rocks record the polarity of Earth's magnetic field as they form, allowing scientists to trace the age of different sections of ocean crust....
  • Scientists detect unexpected widespread structures near Earth's core

    06/12/2020 9:24:12 AM PDT · by BenLurkin · 32 replies ^ | 06/11/2020 | University of Maryland
    Earthquakes generate seismic waves below Earth's surface that travel thousands of miles. When the waves encounter changes in rock density, temperature or composition, they change speed, bend or scatter, producing echoes that can be detected. Echoes from nearby structures arrive more quickly, while those from larger structures are louder. By measuring the travel time and amplitude of these echoes as they arrive at seismometers in different locations, scientists can develop models of the physical properties of rock hidden below the surface. This process is similar to the way bats echolocate to map their environment Using a machine learning algorithm called...
  • Titan Is Drifting Away From Saturn 100 Times Faster Than Scientists Expected

    06/09/2020 12:12:56 PM PDT · by Red Badger · 32 replies ^ | 9 JUNE 2020 | MICHELLE STARR
    Saturn's rings, Titan and the much smaller moon Enceladus. (NASA/JPL/Space Science Institute) ===================================================================== On human timescales, things in the Solar System seem to be pretty set in place. Over cosmic timescales, it's all gradually falling apart. The planets are very, very slowly moving away from the Sun; and most of the moons are slowly moving away from their planets in a process called tidal acceleration. The fact that Titan is slowly moving away from its planet - Saturn - is therefore not at all unusual. But astronomers have found something really surprising: Titan's outward migration is faster than expected -...
  • Surface of the Sun as You've Never Seen it (VIDEO)

    06/08/2020 9:04:12 PM PDT · by dragnet2 · 15 replies
    Our sun is an incredible fusion engine. From the surface of earth, we see it as a mere ball of light, but through amazing high-res imaging capabilities, we can observe real solar activities thanks to NASA's Solar Dynamics Observatory.
  • Brilliant fireball lights up skies over Tennessee (video)

    06/08/2020 8:14:52 PM PDT · by BenLurkin · 10 replies
    space,com ^ | 08 June 2020 | By Tariq Malik
    A meteor lit up the night sky over Tennessee and neighboring states late Sunday (June 7), sparking 120 fireball sightings across 12 different states and Canada. The fireball occurred at 9:42 p.m. EDT (0142 GMT) and blazed a trail over southern Ohio, according to a ground track by the American Meteor Society. It was visible for up to 3.5 seconds from as far south as South Carolina and as far north as Ontario, Canada, AMS reported. One witness video shows the fireball from Knoxville, Tennessee, as the meteor flares up in a dazzling streak and disappear seconds later. The video,...
  • Mysterious deep-space flashes repeat every 157 days

    06/08/2020 8:20:05 AM PDT · by BenLurkin · 28 replies ^ | 08 June 2020 | By Mike Wall
    Fast radio bursts, or FRBs, are extragalactic flashes of light that pack a serious wallop, unleashing in a few milliseconds as much energy as Earth's sun does in a century. More than 100 FRBs have been discovered to date, and most of them are one-offs, flaring up just a single time (as far as we know). In January of this year, astronomers reported that one member of the "repeater" class, called FRB 180916.J0158+65, appears to exhibit a 16-day activity cycle: It fires off bursts for a four-day stretch, goes quiet for 12 days and then starts all over again. FRB...
  • Mysterious deep-space flashes repeat every 157 days

    06/08/2020 10:21:08 AM PDT · by Red Badger · 37 replies
    MSN ^ | 06-08-2020 | Mike Wall
    Astronomers have discovered an activity cycle in another fast radio burst, potentially unearthing a significant clue about these mysterious deep-space phenomena. An artist's impression of a fast radio burst (FRB) reaching Earth, with colors signifying different wavelengths. Fast radio bursts, or FRBs, are extragalactic flashes of light that pack a serious wallop, unleashing in a few milliseconds as much energy as Earth's sun does in a century. Scientists first spotted an FRB in 2007, and the cause of these eruptions remains elusive nearly a decade and a half later; potential explanations range from merging superdense neutron stars to advanced alien...