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Keyword: catastrophism

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  • Researchers consider whether supernovae killed off large ocean animals at dawn of Pleistocene

    12/11/2018 1:37:35 PM PST · by ETL · 22 replies
    Phys.org ^ | Dec 11, 2018 | University of Kansas
    About 2.6 million years ago, an oddly bright light arrived in the prehistoric sky and lingered there for weeks or months. It was a supernova some 150 light years away from Earth. Within a few hundred years, long after the strange light in the sky had dwindled, a tsunami of cosmic energy from that same shattering star explosion could have reached our planet and pummeled the atmosphere, touching off climate change and triggering mass extinctions of large ocean animals, including a shark species that was the size of a school bus. The effects of such a supernova—and possibly more than...
  • Life in deep Earth totals 15 to 23 billion tons of carbon—hundreds of times more than humans

    12/10/2018 11:43:51 AM PST · by ETL · 32 replies
    Phys.org ^ | Dec 10, 2018 | Deep Carbon Observatory
    Barely living "zombie" bacteria and other forms of life constitute an immense amount of carbon deep within Earth's subsurface—245 to 385 times greater than the carbon mass of all humans on the surface, according to scientists nearing the end of a 10-year international collaboration to reveal Earth's innermost secrets. On the eve of the American Geophysical Union's annual meeting, scientists with the Deep Carbon Observatory today reported several transformational discoveries, including how much and what kinds of life exist in the deep subsurface under the greatest extremes of pressure, temperature, and low nutrient availability.Drilling 2.5 kilometers into the seafloor, and...
  • Burial well dating back to Middle Kingdom uncovered

    12/10/2018 1:43:28 PM PST · by SunkenCiv · 21 replies
    Egypt Today ^ | Friday, December 7, 2018 | staff
    The archaeological mission working in the archaeological site of al-Khalwa area, Fayoum, has uncovered a burial well, located to the east of the Prince Waji's tomb... Secretary-General of the Supreme Council of Antiquities Mostafa Waziri said that al-Khalwa, located at southern Fayoum, contains a cemetery dating back to the Middle Kingdom era, namely Amenemhat III era (1842-1799 BC). He added that the cemetery has the tomb of Prince Waji, the ruler of Fayoum in the Middle Kingdom, as well as the tomb of his mother "Nabat Mout", which lies to the east of it. Meanwhile, Head of the archaeological mission...
  • Archaeologists discover ancient tools that actually came from space

    12/06/2017 5:41:45 PM PST · by sparklite2 · 34 replies
    BGR ^ | December 5th, 2017 | Mike Wehner
    We may still be looking for proof that aliens exist, but new research into some very curious ancient tools now reveals that humans were using extraterrestrial material long before mankind even dreamed of flying out of Earth’s atmosphere. The findings, which were published in the Journal of Archaeological Science, reveal that some incredibly old iron artifacts date to a time well before humans had the technological wit to smelt iron ore, and as it turns out, the iron used in their construction actually fell from the sky. Archaeologists have long suspected that the iron occasionally found amongst Bronze Age artifacts...
  • King Tut's Dagger Made of Extraterrestial Material

    06/29/2016 6:01:40 PM PDT · by wildbill · 31 replies
    Bible History Daily ^ | 6/07/2016 | Robin Ngo
    King Tut owned a dagger that was out of this world—literally. Researchers have recently published a study in the journal Meteoritics & Planetary Science that supports what has long been suspected: The ancient Egyptians were using meteoritic iron well before the spread of iron smelting technology. The recent study on King Tut’s dagger, led by researchers from Italy and Egypt, used X-ray fluorescence (XRF) spectrometry to analyze the composition of the iron blade. Iron meteorites mostly contain iron and nickel, and the results of the XRF analysis on King Tut’s dagger confirm that the blade is mostly composed of iron...
  • Dagger in King Tut's tomb was made with iron from a meteorite

    06/01/2016 5:59:32 PM PDT · by ameribbean expat · 23 replies
    Italian and Egyptian researchers analyzed the metal with an X-ray fluorescence spectrometer to determine its chemical composition, and found its high nickel content, along with its levels of cobalt, “strongly suggests an extraterrestrial origin”. They compared the composition to known meteorites within 2,000km around the Red Sea coast of Egypt, and found similar levels in one meteorite.
  • Volcanoes are Fed by ‘Mush’ Reservoirs, Says New Study

    12/07/2018 10:15:20 AM PST · by ETL · 21 replies
    Sci-News.com ^ | Dec 5, 2018 | News Staff / Source
    In order to erupt, volcanoes need a source of magma — melted, liquid rock — containing relatively few solid crystals. Traditionally, this magma was thought to be formed and stored in a magma chamber. Recent studies of magma chemistry have challenged this view, leading to the suggestion of the 'mush' reservoir model, where smaller pools of magma sit in the small gaps between solid crystals. However, the mush reservoir model could not explain how magmas containing relatively few crystals arise and are delivered to volcanoes in order for them to erupt at the surface. Now, with sophisticated modeling of mush...
  • Watch NASA's OSIRIS-REx Rendezvous With an Asteroid: The spacecraft arrives at the tiniest [tr]

    12/03/2018 9:20:54 AM PST · by C19fan · 11 replies
    Popular Mechanics ^ | December 3, 2018 | Avery Thompson
    NASA’s OSIRIS-REx spacecraft was launched in 2016, but today it will begin to orbit its destination: the asteroid Bennu. When it does, Benniu will break the record for the smallest object ever orbited by a manmade spacecraft. NASA will begin a process of learning more about the small asteroids that reside in our part of the solar system. You can watch the livestream of the arrival here:
  • Live coverage of spacecraft arrival at asteroid December 3

    12/02/2018 9:39:20 AM PST · by BenLurkin · 12 replies
    earthsky.org ^ | December 2, 2018 | Eleanor Imster
    NASA’s OSIRIS-REx spacecraft is scheduled to rendezvous with its targeted asteroid, Bennu, on Monday, December 3, 2018, at approximately 17:00 UTC (noon EST). Translate UTC to your time. NASA will air a live event from 16:45 to 17:15 UTC (11:45 a.m.to 12:15 p.m. EST) to highlight the arrival of the agency’s first asteroid sample return mission. You can watch on NASA TV, Facebook Live, Ustream, YouTube and NASA Live. NASA TV also will air an arrival preview program starting at 16:15 UTC (11:15 a.m. EST). OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer) launched in September 2016 and has been...
  • NASA asteroid probe may find clues to origins of life on Earth (Bennu, time capsule of our origins)

    09/08/2016 11:57:51 AM PDT · by NormsRevenge · 11 replies
    Reuters on Yahoo News ^ | 9/8/16 | Irene Klotz
    CAPE CANAVERAL, Fla. (Reuters) - A U.S. space probe was cleared for launch on Thursday to collect and return samples from an asteroid in hopes of learning more about the origins of life on Earth and perhaps elsewhere in the solar system, NASA said on Tuesday. A United Launch Alliance Atlas 5 rocket was scheduled to blast off from Cape Canaveral Air Force Station in Florida to dispatch the robot explorer Osiris-Rex on a seven-year mission. United Launch Alliance is a partnership of Lockheed-Martin and Boeing. Osiris-Rex is headed to a 1,640-foot (500-meter) wide asteroid named Bennu, which circles the...
  • NASA plans to launch study of asteroid that could destroy Earth (Bennu in 2135 scenario)

    07/31/2016 3:51:23 PM PDT · by NormsRevenge · 35 replies
    New York Post ^ | 7/31/15 | Eileen AJ Connelly
    Paging Bruce Willis! NASA is planning to launch a probe to study an asteroid that could one day pulverize the Earth. The asteroid, named Bennu, crosses Earth’s orbit once every six years and has gotten ever closer since it was discovered in 1999, astronomers told the Sunday Times of London (paywall). In 2135, Bennu will fly between the moon and Earth — a hair’s breadth in space terms, the Times reported. That’s so close that gravity from the Earth could effect Bennu’s orbit, “potentially putting it on course for the Earth later that century,” said Dante Lauretta, a professor of...
  • Can Venus Teach Us to Take Climate Change Seriously? (Venus CO2 96.5%, Earth CO2 0.03%!)

    12/02/2018 10:29:53 AM PST · by ETL · 63 replies
    Space.com ^ | Nov 29, 2018 | Meghan Bartels, Space.com Senior Writer
    If human-induced climate change continues unchecked, 10 percent of the U.S. economy could evaporate by 2100, a 1,656-page federal report the White House slipped out on Black Friday (Nov. 23) warned — but a nearby world has an even hotter climate problem than ours, and scientists say we could learn some valuable lessons from it. That world is Venus, Earth's "evil twin," which was once nice enough — until something went wrong and the atmosphere began trapping a little too much heat. Scientists aren't positive precisely how events played out, but the runaway greenhouse effect that resulted is beyond debate:...
  • High-tech search company claims to have found Atlantis

    12/01/2018 6:37:32 AM PST · by BenLurkin · 56 replies
    nypost ^ | November 29, 2018 | 4:24pm | Updated | Mike Wehner, BGR
    Now, with a suite of high-tech hardware at its disposal, a company called Merlin Burrows believes it might have finally pinpointed the location where the city once stood.... Bruce Blackburn says his company used satellite data to comb an area that the group believed may have been the location of the thriving city. Their work began years ago and, according to Blackburn, the location was chosen based on Plato’s writings as well as other texts. The spot, which is located near the coast in Spain’s Doñana National Park, was subsequently searched for clues. Merlin Burrows says it was then that...
  • Einstein's Theory of General Relativity Just Survived a Massive Crash in Outer Space

    11/29/2018 11:07:34 AM PST · by ETL · 33 replies
    LiveScience.com ^ | Nov 29, 2018 | Rafi Letzter, Staff Writer
    Gravity is big and weird and difficult to study. It moves through space as a wave, sort of like how light does. But these waves are subtle and difficult to detect. They occur in measurable amounts only after massive events, like the collision of black holes. Humanity didn't spot its first gravitational wave until 2015. Then, in 2017, astronomers for the first time detected both gravitational waves and light from a single event: a neutron star collision. Now, researchers are using data from that event to confirm some basic facts about the universe. In a paper first uploaded Nov. 1...
  • Strange waves rippled around the world, and nobody knows why

    11/29/2018 4:08:29 PM PST · by ETL · 70 replies
    National Geographic ^ | Nov 28, 2018 | Maya Wei-Haas
    On the morning of November 11, just before 9:30 UT, a mysterious rumble rolled around the world. The seismic waves began roughly 15 miles off the shores of Mayotte, a French island sandwiched between Africa and the northern tip of Madagascar. The waves buzzed across Africa, ringing sensors in Zambia, Kenya, and Ethiopia. They traversed vast oceans, humming across Chile, New Zealand, Canada, and even Hawaii nearly 11,000 miles away. These waves didn't just zip by; they rang for more than 20 minutes. And yet, it seems, no human felt them. Only one person noticed the odd signal on the...
  • Scientists: 'superheated blast from the sky' destroyed Dead Sea cities, pointing to Sodom in Bible

    11/28/2018 9:44:08 AM PST · by SeekAndFind · 19 replies
    Christian Post ^ | 11/27/2018 | Stoyan Zaimov
    Scientists have found that a "superheated blast from the skies" destroyed cities near the Dead Sea 3,700 years ago, which biblical analysts are saying echoes the destruction of Sodom.Science News reported that the new findings were revealed at the annual meeting of the American Schools of Oriental Research last week by archaeologist Phillip Silvia of Trinity Southwest University in Albuquerque, New Mexico. The scientists discovered radiocarbon dating and unearthed minerals that instantly crystallized at high temperatures at what used to be cities and farming settlements north of the Dead Sea, suggesting that a massive air-burst, possibly by a meteor, destroyed...
  • Cosmic Airburst May Have Wiped Out Part of the Middle East 3,700 Years Ago

    11/29/2018 3:27:03 AM PST · by BenLurkin · 28 replies
    The airburst "in an instant, devastated approximately 500 km2 [about 200 square miles] immediately north of the Dead Sea, not only wiping out 100 percent of the [cities] and towns, but also stripping agricultural soils from once-fertile fields and covering the eastern Middle Ghor with a super-heated brine of Dead Sea anhydride salts pushed over the landscape by the event's frontal shock waves," the researchers wrote in the abstract for a paper that was presented at the American Schools of Oriental Research annual meeting held in Denver Nov. 14 to 17. Anhydride salts are a mix of salt and sulfates....
  • The mystery of the 'rumble in the Indian Ocean': Strange seismic waves that shook the world...

    11/29/2018 3:05:58 AM PST · by BenLurkin · 32 replies
    Daily Mail UK ^ | 11/29/2018 | CHeyenn Macdonald and Harry Pettitt
    Full Title: "The mystery of the 'rumble in the Indian Ocean': Strange seismic waves that shook the world on November 11 baffle researchers" Mysterious seismic waves in the Indian Ocean that were picked up by monitoring stations from Madagascar to Canada three weeks ago have baffled scientists. Researchers and earthquake enthusiasts who spotted the signals have narrowed down the origin to a region just off the coast of the island Mayotte. The slow waves detected on November 11 rumbled for more than 20 minutes, unbeknownst to most people. They are similar to those typically seen after large earthquakes, which are...
  • "Similar Event Within 100 Light Years of Earth Would Be Catastrophic" --Astronomers...

    07/28/2016 7:54:07 AM PDT · by LibWhacker · 71 replies
    For most of 2016, astronomers have been viewing a ball of hot gas billions of light years away that is radiating the energy of hundreds of billions of suns. At its heart is an object a little larger than 10 miles across. And astronomers are not entirely sure what it is. If, as they suspect, the gas ball is the result of a supernova, then it’s the most powerful supernova ever seen. Most astronomers today believe that one of the plausible reasons we have yet to detect intelligent life in the universe is due to the deadly effects of local...
  • Early Earth Was Almost Entirely Underwater, With Just A Few Islands

    05/13/2017 6:19:54 PM PDT · by BenLurkin · 47 replies
    universe today ^ | 05/13/2017 | Evan Gough
    4.4 billion years ago, the Earth was in what is called the ‘Hadean Eon’. This time period is poorly understood, because there is no rock record dating from that time. This is where the zircon mineral grains come in. ... In a sense, these zircon grains are the missing pages. Zircon’s chemical name is zirconium silicate, and it’s found almost everywhere in the Earth’s crust. This study focuses on what’s called detrital zircon, which is formed in igneous rocks, but then survives over time until deposited in sedimentary rocks. Zircon grains are typically very small, about 0.1 to 0.3 mm...