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For the other Astronuts out there

Discussion in 'Free Fire Zone' started by Biak, Nov 2, 2011.

  1. Biak

    Biak Boy from Illinois Staff Member

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    They are the Mars version according to NASA.


    The fine, rippling structures of these clouds are easier to see with images from Curiosity’s black-and-white navigation cameras. But it’s the color images from the rover’s Mast Camera, or Mastcam, that really shine – literally. Viewed just after sunset, their ice crystals catch the fading light, causing them to appear to glow against the darkening sky. These twilight clouds, also known as “noctilucent” (Latin for “night shining”) clouds, grow brighter as they fill with crystals, then darken after the Sun’s position in the sky drops below their altitude. This is just one useful clue scientists use to determine how high they are.

    Even more stunning are iridescent, or “mother of pearl” clouds. “If you see a cloud with a shimmery pastel set of colors in it, that’s because the cloud particles are all nearly identical in size,” said Mark Lemmon, an atmospheric scientist with the Space Science Institute in Boulder, Colorado. “That’s usually happening just after the clouds have formed and have all grown at the same rate.”

    The link was suppose to go to the article but you'll have to find the Mars Cloud story. Sorry.


    NASA Jet Propulsion Laboratory (JPL) - Robotic Space Exploration
     
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  2. GRW

    GRW Pillboxologist WW2|ORG Editor

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    No worries- found it.
     
  3. GRW

    GRW Pillboxologist WW2|ORG Editor

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    Amazed at the stuff they keep discovering. Now they neeed to unravel why.
    "Catastrophic events on Earth don't come at random, but are dictated by a 'pulse' of geologic activity that occurs every 27.5 million years, a new study reveals.
    Researchers performed an analysis of 260 million years of major geological events, including extinctions, eruptions and sea-level fluctuations.
    The team, from New York University, found the events occurred in 'recurring clusters' spaced roughly 27.5 million years apart.
    These pulses may be the result of as-yet-undetermined 'cycles' of activity in the Earth's interior, such as plate tectonics, although similar cycles in the Earth's orbit in space might also play a part.
    The most recent 'pulse' of major geological activity was around 7 million years ago, suggesting the next one is more than 20 million years in the future."
    www.dailymail.co.uk/sciencetech/article-9707865/Earths-pulse-geologic-activity-happens-27-5-million-years-says-study.html
     
  4. R Leonard

    R Leonard Member

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    I shall sleep easy tonight.
     
  5. Biak

    Biak Boy from Illinois Staff Member

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    I wonder if this has an effect every so many millions of years o_O

    Is Earth’s core lopsided? Strange goings-on in our planet’s interior.

    For reasons unknown, Earth’s solid-iron inner core is growing faster on one side than the other, and it has been ever since it started to freeze out from molten iron more than half a billion years ago, according to a new study by seismologists at the University of California, Berkeley.

    The faster growth under Indonesia’s Banda Sea hasn’t left the core lopsided. Gravity evenly distributes the new growth — iron crystals that form as the molten iron cools — to maintain a spherical inner core that grows in radius by an average of 1 millimeter per year.

    But the enhanced growth on one side suggests that something in Earth’s outer core or mantle under Indonesia is removing heat from the inner core at a faster rate than on the opposite side, under Brazil. Quicker cooling on one side would accelerate iron crystallization and inner core growth on that side.

    This has implications for Earth’s magnetic field and its history, because convection in the outer core driven by release of heat from the inner core is what today drives the dynamo that generates the magnetic field that protects us from dangerous particles from the sun.
     
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  6. GRW

    GRW Pillboxologist WW2|ORG Editor

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    You would think so.
     
  7. Takao

    Takao Ace

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  8. Biak

    Biak Boy from Illinois Staff Member

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    If you like watching the night sky:

    International Space Station

    ISS going nearly directly overhead tonight ! And it looks like we're going to have clear skies.
     
  9. OpanaPointer

    OpanaPointer I Point at Opana Staff Member WW2|ORG Editor

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    Hubble is coming back to life after over a month down hard. Not bad for technology from the '80s.
     
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  10. CAC

    CAC Ace of Spades

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    Bezos goes up and comes down...not in the same category as Musk, but a great effort anyway.
     
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  11. Biak

    Biak Boy from Illinois Staff Member

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    Watched the videos of the flight and my nose would have been glued to the window and to heck with that floating stuff.
     
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  12. CAC

    CAC Ace of Spades

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    Extra large windows too...first time i've seen them that big. I wonder if phones are/were allowed on the flight (probably not). Surely that would be the ultimate selfie (Australia invented the word "Selfie" - true story) - Blow all those no use "influencers" out of the water...
     
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  13. OpanaPointer

    OpanaPointer I Point at Opana Staff Member WW2|ORG Editor

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    "New Shepard" was named for Alan Shepard, the first American is space. His was a suborbital flight as well. I would love to see some flatters go up and see the curvature of the Earth for themselves. Not because they'd stop being flatters but because the mental gymnastics needed to explain that away would be fun to see.
     
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  14. Biak

    Biak Boy from Illinois Staff Member

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    And 60 years ago today Gus Grissom became the second American in space.

    Gus Grissom had just entered the history books. A mere 10 weeks after Alan Shepard made America’s first human flight into space, Grissom followed with the second one, a 15-minute suborbital hop that took him to an altitude of 189km above the blue planet. After the small Mercury capsule’s parachutes deployed, Grissom splashed down in the Atlantic Ocean, seemingly bringing a flawless mission to a close.

    Only it wasn't flawless, nor was it closed. At that moment, Gus Grissom almost drowned.


    Gus Grissom taught NASA a hard lesson: “You can hurt yourself in the ocean”
     
  15. GRW

    GRW Pillboxologist WW2|ORG Editor

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    Nice work.
    "A team of astronomers at Stanford University has detected light coming from behind a black hole in a first ever observation that proves famed theoretical physicist Albert Einstein's theory of relativity.
    The study, published Wednesday in Nature, analyzed X-ray 'echoes' surrounding a black hole, some 100 million light-years from Earth, which were a result of the intense gravity of the object warping space and bending the light back around into view.
    These 'echoes' are flashes of X-ray light that come from the disk, which scientists use to map the black hole's inner structure.
    The scenario was predicted by Einstein's theory, which determined that massive objects cause a distortion in space-time, which is felt as gravity.
    Roger Blandford, a co-author of the research, published in Nature, said: 'Fifty years ago, when astrophysicists starting speculating about how the magnetic field might behave close to a black hole, they had no idea that one day we might have the techniques to observe this directly and see Einstein's general theory of relativity in action.'
    While conducting the research, Stanford University astrophysicist Dan Wilkins observed a series of bright flares of X-rays and then the telescopes recorded something unexpected: additional flashes of X-rays that were smaller, later and of different 'colors' than the bright flares."
    www.dailymail.co.uk/sciencetech/article-9835851/Scientists-observe-light-coming-black-hole-time.html
     
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  16. CAC

    CAC Ace of Spades

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    NASA’s Ingenuity Mars Helicopter Spots Perseverance From Above

    This image may not mean much to the ignorant eye...but for those following space exploration (the astronuts out there) this picture is simply amazing. The Rover is out there in the distance. Note the copter shadow below...beautiful resolution. Take a bow America/NASA.

    [​IMG]
     
  17. OpanaPointer

    OpanaPointer I Point at Opana Staff Member WW2|ORG Editor

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  18. Biak

    Biak Boy from Illinois Staff Member

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    NASA’s James Webb Space Telescope has reached a major turning point on its path toward launch with the completion of final observatory integration and testing,” said Gregory L. Robinson, Webb’s program director at NASA Headquarters in Washington. “We have a tremendously dedicated workforce who brought us to the finish line, and we are very excited to see that Webb is ready for launch and will soon be on that science journey.”
     

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  19. Kai-Petri

    Kai-Petri Kenraali

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    https://www.bbc.com/future/article/20210820-where-did-supermassive-black-holes-come-from

    They are the biggest black holes in the known Universe, billions of times more massive than our Sun, but little is known about how these monsters form and grow so big. New telescopes and techniques are giving us a new way of looking at these giants.

    Black holes have a spherical boundary known as an "event horizon". Within this sphere, light, energy, and matter are inescapably trapped. Space and time fold in on themselves, and the physical laws that describe how most of our Universe works break down. But, just outside the event horizon, a spinning black hole can whip nearby material into a spinning, superheated disc. Reaching temperatures higher than 10 million C, the accretion disc in a quasar releases blindingly bright radiation across the electromagnetic spectrum.

    "Black holes are the most effective, efficient engines in the Universe," says Marta Volonteri, a black hole researcher at l'Institut d'Astrophysique de Paris. "They transform mass into energy with up to 40% efficiency. If you think of anything we burn with carbon, or chemical energy, or even what happens in stars, it's just a small, small fraction of what a black hole produces."
     
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  20. CAC

    CAC Ace of Spades

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    Our digestive system is a matter energy machine…I wonder how efficient that is?
     

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