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Keyword: crater

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  • A.I. spots thousands of unidentified craters on the moon

    03/17/2018 12:40:37 PM PDT · by Swordmaker · 31 replies
    Digital Trends ^ | March 16, 2018 - 2:18PM | By Dyllan Furness
    Image: NASA’s Goddard Space Flight Center The moon is under constant bombardment by meteorites and asteroids that can leave massive craters on its surface. The Aitken basin, the largest impact crater on the lunar surface, has a diameter equivalent to the distance from London to Athens, Greece. But not all craters are so noticeable — most are relatively insignificant. Thousands of previously unknown craters have been spotted on the moon thanks to an artificial intelligence program designed by researchers at the University of Toronto. “We created an A.I. powered method that autocratically identifies craters on the surface of the moon,...
  • Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters?

    07/03/2017 12:22:01 AM PDT · by LibWhacker · 13 replies
    Planetary Society ^ | 6/12/17 | Jason Davis
    Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters? About 66 million years ago, a 10-kilometer-wide hunk of rock smashed into Earth near what is now Mexico's Yucatán Peninsula.The impact created a global dust cloud that snuffed out the sunlight, leading to the demise of 80 percent of Earth's plants and animals—including most of the dinosaurs. A 200-kilometer-wide crater buried near the city of Chicxulub is all that's left. It's ground zero for one of the world's most notable extinction events.But throughout Earth's history, there have actually been five major extinction events. The largest of...
  • Asteroid strike made 'instant Himalayas'

    11/18/2016 9:20:25 PM PST · by MtnClimber · 29 replies
    BBC ^ | 18 Nov, 2916 | Jonathan Amos BBC Science Correspondent
    Scientists say they can now describe in detail how the asteroid that wiped out the dinosaurs produced its huge crater. The reconstruction of the event 66 million years ago was made possible by drilling into the remnant bowl and analysing its rocks. These show how the space impactor made the hard surface of the planet slosh back and forth like a fluid. At one stage, a mountain higher than Everest was thrown up before collapsing back into a smaller range of peaks. "And this all happens on the scale of minutes, which is quite amazing," Prof Joanna Morgan from Imperial...
  • Danish Bronze Age glass beads traced to Egypt

    12/09/2014 5:22:24 PM PST · by SunkenCiv · 15 replies
    Science Nordic ^ | December 8, 2014 | Jeanette Varberg, Flemming Kaul, Bernard Gratuze, tr by Michael de Laine
    ...The analyses revealed that the glass originate from the same glass workshops in Egypt that supplied the glass that the Egyptian Pharaoh Tutankhamun took with him to his grave in 1323 BC... Globalisation in the Bronze Age Twenty-three glass beads from Denmark were analysed using plasma-spectrometry. Without destroying the fragile beads, this technique makes it possible to compare the chemical composition of trace elements in the beads with reference material from Amarna in Egypt and Nippur in Mesopotamia, about 50 km south east of Baghdad in Iraq. The comparison showed that the chemical composition of the two sets of trace...
  • Ancient Egyptian Glassmaking Recreated

    12/14/2007 7:23:57 PM PST · by blam · 15 replies · 175+ views
    Eureka Alert ^ | 12-14-2007 | Dr Paul Nicholson
    Contact: Dr. Paul Nicholson 44-292-087-4582 Cardiff University Ancient Egyptian glassmaking recreated 3000-year-old furnace rebuilt by archaeologist The reconstructed kiln built by Dr. Paul Nicholson of Cardiff University and Dr. Caroline Jackson of Sheffield University. A team led by a Cardiff University archaeologist has reconstructed a 3,000-year-old glass furnace, showing that Ancient Egyptian glassmaking methods were much more advanced than previously thought. Dr Paul Nicholson, of the University’s School of History and Archaeology, is leader of an Egypt Exploration Society team working on the earliest fully excavated glassmaking site in the world. The site, at Amarna, on the banks of...
  • Maltese claims extraordinary discovery in Sahara desert

    12/29/2007 8:01:23 PM PST · by SunkenCiv · 74 replies · 176+ views
    Independent Online ^ | Saturday, December 29, 2007 | unattributed
    Mark Borda and Mahmoud Marai, from Malta and Egypt respectively, were surveying a field of boulders on the flanks of a hill deep in the Libyan desert some 700 kilometres west of the Nile Valley when engravings on a large rock consisting of hieroglyphic writing, Pharaonic cartouche, an image of the king and other Pharaonic iconography came into view. Mr Borda would not reveal the precise location in order to protect the site... "The consensus among Egyptologists is that the Egyptians did not penetrate this desert any further than the area around Djedefre's Water Mountain. This is a sandstone hill...
  • Mysterious Egyptian Glass Formed By Meteorite Strike, Study Says

    12/22/2006 11:19:39 AM PST · by blam · 35 replies · 1,558+ views
    National Geographic ^ | 12-21-2006 | Stefan Lovgren
    Mysterious Egyptian Glass Formed by Meteorite Strike, Study Says Stefan Lovgren for National Geographic News December 21, 2006 Strange specimens of natural glass found in the Egyptian desert are products of a meteorite slamming into Earth between 100,000 and 200,000 years ago, scientists have concluded. The glass—known locally as Dakhla glass—represents the first clear evidence of a meteorite striking an area populated by humans. At the time of the impact, the Dakhla Oasis, located in the western part of modern-day Egypt, resembled the African savanna and was inhabited by early humans, according to archaeological evidence (see Egypt map.) "This meteorite...
  • Cray Supercomputer... Discover Origin Of Mysterious Glass Found In King Tut's Tomb

    08/02/2007 10:47:08 AM PDT · by blam · 37 replies · 2,416+ views
    Cray Supercomputer at Sandia Helps Researchers Discover Origin of Mysterious Glass Found in King Tut's Tomb Released : Tuesday, July 31, 2007 7:26 AM Global supercomputer leader Cray Inc. (NASDAQ: CRAY) today announced that researchers running simulations on the Cray supercomputer at Sandia National Laboratories have re-created what could have happened 29 million years ago when an asteroid explosion turned Saharan sand into glass. The greenish natural glass, which can still be found scattered across remote stretches of the desert, was used by an artisan in ancient Egypt to carve a scarab that decorates one of the bejeweled breastplates buried...
  • Tut's gem hints at space impact

    07/20/2006 5:48:59 AM PDT · by BenLurkin · 10 replies · 272+ views
    bbc ^ | Last Updated: Wednesday, 19 July 2006, 19:09 GMT 20:09 UK
    In 1996 in the Egyptian Museum in Cairo, Italian mineralogist Vincenzo de Michele spotted an unusual yellow-green gem in the middle of one of Tutankhamun's necklaces. The jewel was tested and found to be glass, but intriguingly it is older than the earliest Egyptian civilisation. Working with Egyptian geologist Aly Barakat, they traced its origins to unexplained chunks of glass found scattered in the sand in a remote region of the Sahara Desert. But the glass is itself a scientific enigma. How did it get to be there and who or what made it? Thursday's BBC Horizon programme reports an...
  • King Tut's Necklace Shaped By Fireball

    06/26/2006 4:32:58 PM PDT · by blam · 43 replies · 1,742+ views
    The Australian ^ | 6-26-2006
    King Tut's necklace shaped by fireball June 26, 2006 LONDON: Scientists believe they have solved the mystery surrounding a piece of rare natural glass at the centre of an elaborate necklace found among the treasures of Tutankhamun, the boy pharaoh. They think a fragile meteorite broke up as it entered the atmosphere, producing a fireball with temperatures over 1800C that turned the desert sand and rock into molten lava that became glass when it cooled. Experts have puzzled over the origin of the yellow-green glass -- carved into the shape of a scarab beetle -- since it was excavated in...
  • Is That a Big Crater on Pluto? Pyramidal Mountain Found on Ceres

    07/01/2015 5:53:46 AM PDT · by BenLurkin · 9 replies ^ | on June 30, 2015 | Bob King
    You’re probably as eager as I am for new images of Pluto and Ceres as both New Horizons and Dawn push ever closer to their respective little worlds. Recent photos, of which there are only a few, reveal some wild new features including what appears to a large crater on Pluto. In the end, this apparent large impact might only be a contrast effect or worse, an artifact of over-processing, but there’s no denying its strong resemblance to foreshortened, shadow-filled craters seen on the Moon and other moons. It’s also encouraging that an earlier photo from June 27 shows the...
  • An Enormous Crater Randomly Appeared in Remote Siberia and the World Is Freaking Out

    07/17/2014 3:21:14 PM PDT · by nickcarraway · 78 replies
    Global Post ^ | July 17, 2014 | Timothy McGrath
    It's gotta be either a UFO or a giant worm, right?It's hard to tell from this perspective — ya know, while on the internet — but that's a freakin' gigantic hole in the ground. It's about 260 feet wide, nobody knows how deep, and it seems to have appeared out of nowhere in a remote corner of northern Siberia called Yamal, which means, appropriately, "the end of the world." There are plenty of theories already. Could be a UFO crash site, some say. Others, a meteorite. A researcher with the Sub-Arctic Scientific Research Centre thinks it might have been caused...
  • UFO landing site? Meteorite crater? Scientists baffled by gigantic 262ft hole [Siberia]

    07/15/2014 10:43:11 AM PDT · by Red Badger · 97 replies ^ | Updated: 11:34 EST, 15 July 2014 | By Travelmail Reporter
    FULL TITLE:UFO landing site? Meteorite crater? Scientists baffled by gigantic 262ft hole that has appeared at Siberia's 'End of The World' Enormous crater appears suddenly in part of Russia whose name translates as 'the end of the world' Teams of scientists are rushing east to fathom the cause of this unusual - and rare - geographical occurrence One especially outlandish theory talks about a UFO landing as a possible cause of this colossal chasm in the earth An urgent expedition will leaves tomorrow to probe a giant crater that has appeared in gas-rich northern Siberia. Extraordinary aerial images show a...
  • Is this an alien structure or a secret human moon base?

    01/19/2014 10:01:11 PM PST · by Errant · 84 replies
    Sunday World ^ | 18 January 2014
    A mystery object spotted on the surface of the moon has sent conspiracy theorists into overdrive. The bizarre wedge-shaped structure with rows of seven light-like dots along its edge appears on the lunar surface. It was discovered on the Google Moon viewer at coordinates 22042'38.46N and 142034'44.52E. Speculation has exploded over the images of the anomaly that UFO websites have likened to an alien lunar base or spaceship. There are also theories that it is an alien spaceship nestled under the dust of the moon or even a secret moon base occupied by humans.
  • Old Comet Strike On Earth

    11/18/2013 1:25:14 AM PST · by Yosemitest · 2 replies ^ | Nov 17, 2013 | BPEarthWatch
    ISON and New Quake Update. ( 6:21 ) Multiple Nuclei in the Coma. At 4 minutes 43 seconds into this video, the author talks about an old comet strike on earth. This whole video is well worth your time and talks about Comet Ison as of about 1:00 pm Sunday Afternoon, Nov 17, 2013. RELATED LINK Giant Crater Found: Tied to Worst Mass Extinction Ever, by Robert Roy Britt, Senior Science Writer (, June 01, 2006
  • Evidence of Internal Moon Water Found

    08/27/2013 1:59:14 PM PDT · by BenLurkin · 7 replies ^ | August 27, 2013 | Jason Major on
    Scientists have detected magmatic water — water that originates from deep within the Moon’s interior — on the surface of the Moon. These findings represent the first such remote detection of this type of lunar water, and were arrived at using data from NASA’s Moon Mineralogy Mapper (M3) carried aboard India’s Chandrayaan-1 lunar orbiter. ... M3 (pronounced “M-cube”) fully imaged the large impact crater Bullialdus in 2009. “It’s within 25 degrees latitude of the equator and so not in a favorable location for the solar wind to produce significant surface water,” Klima explained. “The rocks in the central peak of...
  • Oldest known impact crater found

    07/08/2012 11:37:26 PM PDT · by rjbemsha · 15 replies
    Cardiff University ^ | Cardiff University
    A 100 kilometre-wide crater has been found in Greenland, the result of a massive asteroid or comet impact a billion years before any other known collision on Earth.
  • Geologists 750% Wrong in Death Valley (Crater 800 years old, not 6000 years old)

    01/25/2012 2:18:15 PM PST · by fishtank · 38 replies · 2+ views
    Creation-Evolution Headlines ^ | 1-23-2012 | Creation-Evolution Headlines
    Geologists 750% Wrong in Death Valley Posted on January 23, 2012 in Dating Methods, Geology, Physical Science, Physics A volcanic explosion in northern Death Valley occurred 800 years ago, not 6,000, “far more recently than generally thought,” according to new dating estimates. The event that created Ubehebe Crater is so recent, in fact, geologists think another devastating explosion could happen today. “This certainly adds another dimension to what we tell the public,” a park ranger said after hearing the announcement reported on Science Daily. Using isotopic ages on rocks blown out of the crater, geologists from Columbia University calculated dates...
  • 'Fried Egg' may be impact crater

    12/20/2009 9:37:16 AM PST · by SunkenCiv · 36 replies · 1,143+ views
    BBC News ^ | Friday, December 18, 2009 | Jonathan Amos
    Portuguese scientists have found a depression on the Atlantic Ocean floor they think may be an impact crater. The roughly circular, 6km-wide hollow has a broad central dome and has been dubbed the "Fried Egg" because of its distinctive shape. It was detected to the south of the Azores Islands during a survey to map the continental shelf. If the Fried Egg was made by a space impactor, the collision probably took place within the past 17 million years... It lies under 2km of water about 150km from the Azores archipelago. The depressed ring sits roughly 110m below the...
  • Was the Millennium Falcon found at the bottom of the Baltic Sea?

    07/05/2011 8:31:23 PM PDT · by SunkenCiv · 52 replies ^ | Sunday, July 3, 2011 | Cyriaque Lamar
    On June 19, maritime treasure hunters -- who were looking for priceless submerged hooch in shipwrecks -- discovered a 60-meter-diameter circle 87 meters under the Baltic Sea. Are these the remains of an alien vessel or Cthulhu's personal pan pizza? Next to the circle is a 300 meter long slide track -- as if the circle has traveled across the seabed before it has settled [...] They rule out theories that there is a depth bomb or mine from the First World War -- or a symmetrical [algal] bloom [...] The most likely scenario is still that there is a...