• ES Picture of the Day 08 2022

    From Black Panther@21:1/186 to All on Sat Jan 8 11:00:26 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Archive - Armorican Quartzite

    January 08, 2022
    6a0105371bb32c970b01bb0907d3b8970d

    Every weekend we present a notable item from our archives.

    This EPOD was originally published June 9, 2016.
    Photographer: June 2016 Viewer's Choice Carlos Gómez
    Summary Authors: Carlos Gómez; Jim Foster

    The photo above shows slabs of Armorican Quartzite rising from
    Cíjara Lake ( Embalse de Cíjara), near Cáceres, Spain. As shown
    here, Armorican Quartzite is formed of relatively light-colored,
    thick-bedded layers of quartzite or sandstone that may consist of
    gneisses, deformed tuff, arkose sandstone, and
    conglomerates. Cíjara Lake is actually a reservoir, a dammed
    portion of the Guadiana River, in the Toledo Mountains region
    of west-central Spain. Photo taken on May 23, 2016.

    Photo Details: Camera Model: Canon EOS 600D; Lens: EF-S18-55mm
    f/3.5-5.6 IS II; Focal Length: 37mm; Aperture: ƒ/6.3; Exposure Time:
    0.010 s (1/100); ISO equiv: 100; Software: Windows Photo Editor 10.

    * Cíjara Lake, Spain Coordinates: 39.378056, -5.012222

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    Geology Links

    * Earthquakes
    * Geologic Time
    * Geomagnetism
    * General Dictionary of Geology
    * Mineral and Locality Database
    * Mohs Scale of Mineral Hardness
    * This Dynamic Earth
    * USGS
    * USGS Ask a Geologist
    * USGS/NPS Geologic Glossary
    * USGS Volcano Hazards Program

    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

    --- up 4 weeks, 6 days, 20 hours, 43 minutes
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  • From Black Panther@21:1/186 to All on Tue Feb 8 11:01:50 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    NASA’s DART Spacecraft and Booster

    February 08, 2022

    200

    Photographer: Patrick Wiggins, NASA/JPL Solar System Ambassador to
    Utah

    Summary Author: Patrick Wiggins, NASA/JPL Solar System Ambassador
    to Utah

    I captured these images of NASA’s DART spacecraft and booster
    rocket on the morning of November, 25, 2021. DART is on an intentional
    collision course with the moonlet of an asteroid known as Didymos.
    This video consists of 169 ten second exposures, taken between 01:14
    and 01:52 UT, about 19 hours after DART launched. During that time
    the distance to the spacecraft increased from about 247,000 to about
    255,600 km (just over half the distance to the Moon). Note that the
    DART spacecraft is in the lead with its tumbling and flashing booster
    following.
    Photo details: Field of view is about 18 x 26 arc minutes. North is up
    and east is to the left. Images were shot with an SBIG ST-10XME imager
    binned 3x3 and chilled to -10 C through a clear filter and Celestron 14
    telescope, operating at f/5.5.
    * Tooele, Utah Coordinates: 40.5308, -112.2983

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    Night Sky Links

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    * About the Moon
    * American Meteor Society
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    * Heavens Above Home Page
    * The International Meteor Organization
    * Lunar and Planetary Institute
    * MoonConnection
    * NASA Eclipse Web Page
    * Understanding The Moon Phases

    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

    --- up 9 weeks, 2 days, 20 hours, 44 minutes
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  • From Black Panther@21:1/186 to All on Tue Mar 8 11:00:32 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Punta Bianca Rock Outcropping

    March 08, 2022

    DSC_9876

    Photographer: Salvatore Cerruto

    Summary Author: Giovanni Floridia

    Traveling along the Sicilian coast- a few kilometers southeast of
    Agrigento- visitors can admire the Trubi rock outcroppings. These
    unique and beautiful rocks are named after the term “Trubi” that in the
    Sicilian dialect indicates a land of whitish color. This specific
    landform has been given the name Punta Bianca. Intrinsically linked
    to the surrounding Mediterranean basin, the sea deposits layers of
    different mineral composition and morphology. These deposited layers
    represent part of a succession of an ancient open sea floor, exhumed by
    tectonic forces and eroded by the action of the wind. From their
    geologic history, important scientific information useful for
    paleogeographic and paleoclimatic reconstruction is recorded in
    these landforms.

    History locked away in this landform goes back approximately five
    million years when a partial drying of the Mediterranean basin
    occurred, known as the “ Messinian salinity crisis”. During this
    portion of geologic history, conditions were ideal for small
    calcareous shell microorganisms called Planktonic Foraminifera.
    The deposition of these calcareous shells combined with the underlying
    geology to produce limestone and marl banks. Visitors to the
    area can now admire the beauty of these white rocks as they overlook
    the Mediterranean Sea. In addition to being a beautiful lookout
    point, the Punta Bianca also serves as protection from the strong
    Sicilian Channel currents. Photo taken June 21, 2020.

    Photo details: Nikon D800, Nikon 14-24, f/2.8 @20mm, f/10, ISO-200,
    1/30 sec.
    * Agrigento, Italy Coordinates: 37.194,13.661


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    Geology Links

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    * Mohs Scale of Mineral Hardness
    * This Dynamic Earth
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    * USGS Ask a Geologist
    * USGS/NPS Geologic Glossary
    * USGS Volcano Hazards Program

    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

    --- up 1 week, 1 day, 20 minutes
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  • From Black Panther@21:1/186 to All on Fri Apr 8 12:01:16 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Eiffel Tower Shadow

    April 08, 2022

    6M2A4846p

    Photographer: Bertrand Kulik

    Summary Author: Bertrand Kulik

    A few minutes before sunset one day this past winter, I took the above
    photo from Paris, France, near the Alma Bridge. The Sun was exactly
    behind the Eiffel Tower. Because there was considerable dust in
    the air, as well as other aerosols, the shadow of the tower can
    be seen projected onto a layer of dust in the sky. Photo taken in
    mid-January 2022.

    Photo details :
    Canon EOS 5D Mark III camera; EF50 mm; f/1.8; 50.0 mm; 1/4000 exposure;
    ISO 800
    * Paris, France Coordinates: 48.8566, 2.3522

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    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

    --- up 5 weeks, 4 days, 21 minutes
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  • From Black Panther@21:1/186 to All on Sun May 8 12:01:20 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Archive - Mount Cervino and Blue Lake

    May 07, 2022

    6a0105371bb32c970b016305515d64970d

    Every weekend we present a notable item from our archives.

    This EPOD was originally published on May 21, 2012.

    Photographer: Stefano De Rosa
    Summary Author: Stefano De Rosa
    The photo above showing snow-covered Mount Cervino in a cobalt blue
    sky, reflecting in beautiful Lago Blu (Blue Lake), was snapped in the
    Pennine Alps on the border of Italy and Switzerland. Mount Cervino
    (14,690 ft or 4,478 m), better known outside Italy as the
    Matterhorn, is one of the highest peaks in the Alps. The
    easily recognized pyramid shape towers over Lago Blu (6,293 ft or 1,918
    m) in the Aosta Valley of northwestern Italy. Crystal clear Lago
    Blu is fed by springs and surrounded by century-old larch
    trees. Photo taken on May 4, 2012.
    Photo details: Camera Maker: Canon; Camera Model: Canon EOS 5D Mark II;
    Focal Length: 14.0mm; Aperture: f/14.0; Exposure Time: 0.0020 s
    (1/500); ISO equiv: 100; Exposure Bias: none; Exposure Mode: Manual;
    White Balance: Auto; Flash Fired: No (enforced); Orientation: Normal;
    Color Space: sRGB; Software: Adobe Photoshop CS4 Windows.
    * Mount Cervino, Italy/Switzerland Coordinates: 45.976389, 7.658333

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    Geology Links

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    * Geologic Time
    * Geomagnetism
    * General Dictionary of Geology
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    * Mohs Scale of Mineral Hardness
    * This Dynamic Earth
    * USGS
    * MyShake - University of California, Berkeley
    * USGS Ask a Geologist
    * USGS/NPS Geologic Glossary
    * USGS Volcano Hazards Program

    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

    --- up 9 weeks, 6 days, 21 minutes
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  • From Black Panther@21:1/186 to All on Wed Jun 8 12:00:54 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Path of the Sun from Two Different Latitudes

    June 08, 2022


    Image0 (3)

    Photographers: Marco Meniero; Alessandro Liberatore

    Summary Authors: Alessandro Liberatore; Marco Meniero

    The above shows what happens if you photograph the path of the Sun from
    two different latitudes. Both images were made near the time of the
    December solstice and portray the movement of the Sun in the sky
    during a 24-hour period. The one on the left (December 26, 2021) was
    captured from the Italian Concordia Antarctic Base, where at this
    time of year the Sun never sets.

    The photo on the right (December 20, 2016) was taken in Tuscany, Italy
    and shows the Sun and also twilight and star trails about the North
    Celestial Pole. At Italian latitudes, and everywhere in the
    mid-latitudes and tropics, the Sun always rises and sets. In the
    Northern Hemisphere, only at latitudes higher than the Arctic
    Circle (approximately 66.34 degrees north latitude) will the Sun remain
    below the horizon or above the horizon for an entire 24-hour period.

    Photo details: Both shots were taken using with Photoshop's Photomerge
    feature, and once the panoramas were complete, Photoshop's Polar
    Coordinate / Units Distort filter was used for the spherical
    projection.
    * Italian Concordia Arctic Base Coordinates: -75.09978, 123.332196
    * Tuscany, Italy Coordinates: 43.7711, 11.2486

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    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

    --- up 14 weeks, 2 days, 21 minutes
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  • From Black Panther@21:1/186 to All on Mon Aug 8 12:00:44 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Fogbow Observed from the Ground and from a Tower

    August 08, 2022

    IMG_6481

    Z5-Fogbow-TWR1

    Photographer: Marco Meniero

    Summary Author: Marco Meniero

    When bows form in fog or mist, the cloud droplets are so small,
    (smaller than about 0.5 mm in diameter) that their familiar arch
    appears whitish and is usually inconspicuous. The fogbow
    (sometimes called a cloudbow) takes on the same angular dimensions and
    the same luminous intensity as that of the secondary rainbow. Like
    with rainbows, to see a cloudbow you must look in the opposite
    direction of the Sun. Both photos taken from Viterbo Airport, Italy, on
    April 25, 2022.

    Photo details: Bottom photo taken from airport tower with a fisheye
    lens.


    Viterbo Airport, Italy Coordinates: 42.436111, 12.061667


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    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

    --- up 23 weeks, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Thu Sep 8 12:00:56 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Morning Dew and Spider Web Illumination

    September 08, 2022

    IMG_6256a

    Photographer: Piero Armando
    Summary Author: Piero Armando

    During a morning trek along the Valnontey, in the Aosta Valley
    of far northwestern Italy, the morning dew was quite evident. In
    particular it created a splendid effect on this classic spider web.
    The “ silk” composing spider webs is very fine and is quite
    effective in scattering light. Note that whether the web appears bright
    or dark depends on not only the illumination but on the background
    against which it’s observed. Photo taken on June 23, 2022.

    Photo details: Canon EOS 600D camera; exposure 1/400 seconds; ISO 400;
    f ratio f/8; focal length 180 mm.

    Valnontey (Aosta Valley), Italy Coordinates: 45.5863, 7.3392


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    Earth Science Picture of the Day is a service of the
    -
    Universities Space Research Association.

    https://epod.usra.edu

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  • From Black Panther@21:1/186 to All on Sat Oct 8 12:01:12 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Two Views of the Wondrous Andromeda Galaxy

    October 07, 2022

    GregP_Combine_Sky90_Hyperstar_200mm_EPOD_2

    GregP_M31_85subs_3mins_EPOD

    Photographer: Greg Parker

    Summary Authors: Greg Parker; Jim Foster

    The Andromeda Galaxy (M31) is considered the most distant
    object that we can detect with the unaided eye. If you live in the
    Northern Hemisphere and have never seen a galaxy, other than our
    Milky Way, you owe it to yourself to venture into the countryside
    on a clear, moonless autumn evening and look to the northeast. Between
    the stars is the asterism of the Square of Pegasus and the
    constellation of Perseus, a very faint glow will appear in the
    constellation of Andromeda. You may need to use averted vision
    to see it. If you still can’t spot it, grab a pair of binoculars.

    Of course, don’t expect to see anything that resembles the remarkable
    images above, captured from the New Forest Observatory.
    Nevertheless, just being able to discern this distant smudge (some
    2.5 million light years away) is thrilling. The light we see when we
    gaze at M31 began its path to our eyes about the time that North
    America and South America were linked by the Isthmus of Panama and
    around the time our ancestors were starting to stand upright. We can
    see it with the naked eye not only because it’s relatively close by
    (one of the Milky Way's nearest galactic neighbors), but because it’s
    huge -– 220,000 light years across, holding perhaps a trillion stars.

    Photo details:

    Top "zoomed out view" - Canon 200 mm prime lens; ASI 2600MC Pro colour
    CMOS camera.

    Bottom: “zoomed in view” - Hyperstar 4 (on a Celestron C11 telescope)
    image; ASI 2600MC Pro colour CMOS camera.

    New Forest Observatory, U.K. Coordinates: 50.819444, -1.59


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  • From Black Panther@21:1/186 to All on Tue Nov 8 11:01:06 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Wafer Thin Moon and Pumpkin Sky

    October 31, 2022


    MatthewC_DSC_1834s2s


    Photographer: Matthew Chin
    Summary Author: Matthew Chin; Jim Foster
    Can you spot the sliver of the crescent Moon? Because it was only about
    1.3% illuminated when this photo was snapped, at dawn on June 28, 2022,
    it isn’t exactly conspicuous against the pumpkin-colored sky. As night
    has now lost its grip, hordes of bats are returning to their caves
    (could this be the source of the dark smudge at lower right?) and other
    spooky, nocturnal creatures will soon be asleep in their lairs. Photo
    taken in Yuen Long, Hong Kong, on June 28, 2022, at 05:12 a.m. local
    time.

    Yuen Long, Hong Kong Coordinates: 22.4445, 114.0222


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    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

    --- up 36 weeks, 1 day, 21 minutes
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  • From Black Panther@21:1/186 to All on Thu Dec 8 11:01:34 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Golden Torch Cactus Flower

    December 08, 2022


    DaleHugo_cactusflower

    Photographer: Linda Marcy
    Summary Author: Dale Hugo

    Shown above is a Golden Torch cactus flower ( Echinopsis spachiana).
    It was found blooming in the photographer’s yard in Gilbert, Arizona.
    Like most cacti, they bloom at night and only for a short time. Usually
    after dusk the blossoms appear for fertilization by nighttime
    pollinators that are attracted by the wonderful fragrances of cacti
    flowers. A number of desert pollinators apparently avoid the heat of
    day, and thus the night blooming tendency of many cacti.

    These flowers last only through the morning, flowering for only 10
    hours or so. But their beauty makes up for the short-lived blooms. This
    one faded out before noon. Sic Transit Gloria.

    The Golden Torch is sometimes planted in rock gardens in the U.S.
    Southwest and elsewhere. They attain heights of about 6 ft (2 m) and
    grow in clumps as you can see here. Sometimes the entire head of the
    cactus will be covered with several flowers at once. The spines are
    nearly an inch (2 cm) long and worthy of your respect. Don’t back up in
    an Arizona garden! Be careful not to over-water your cactus plants, but
    they do appreciate sporadic watering during long dry spells. Photo
    taken in early July 2022.

    Gilbert, Arizona Coordinates: 33.3528, -111.7890


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    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

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