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  • ES Picture of the Day 09 2023

    From Black Panther@21:1/186 to All on Mon Jan 9 11:00:44 2023
    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.


    Subterranean Cathedral of Salt in Sicily

    January 09, 2023


    Miniera di salgemma

    Photographer: Giovanni Caruso
    Summary Author: Giovanni Caruso
    This rock salt mine is found near the municipality of Realmonte on
    the island of Sicily and is one of the largest salt mines in
    Europe. It dates to 6 million years ago. Salt is made accessible by
    approximately 80 miles (130 km) of tunnels, distributed in 6 different
    levels, reaching a depth of about 1,640 ft (500 m). The salt that’s
    mine from here is extracted primarily for cooking purposes. However,
    industrial rock salt is also extracted for tanneries and dry cleaners.

    The Cathedral of Salt was constructed at a depth of 200 ft (61 m).
    It’s some 66 ft (20 m) wide and 26 ft (8 m) high and has been
    completely excavated and built with salt. Even the adorning statues and
    furnishings were fashioned by carving into the rock salt. Photo taken
    on June 10, 2014.


    Realmonte, Sicily, Italy Coordinates: 37.1754, 13.2825

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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
    * 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 45 weeks, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Thu Feb 9 11:01:18 2023
    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.


    ISS Transit of the Sun Observed from Sardinia, Italy

    February 09, 2023


    IssTransit2

    Photographer: Roberto Ortu
    Summary Author: Roberto Ortu

    The image above is the result from my first attempt to shoot the
    International Space Station (ISS) transiting the Sun. This
    transit took place on July 26, 2022, at 17:41:07 local time
    (15:41:07 UTC) in Cabras, Sardinia, Italy. At the time of transit, the
    ISS was approximately 700 km (435 miles) above my home and its apparent
    size was 38 arc seconds.

    The space station is about as big as a football field, and its orbital
    speed is almost 28,000 km/hr (17,400/mph. Note that the first module of
    the station, called Zarya, was launched in 1998 from the
    Baikonur Cosmodrome, in Kazakhstan. The operational life of the ISS
    has been extended until 2030. In addition to the silhouette of the ISS,
    a few sunspots are also visible in the active regions AR3062 and
    AR3066.

    Photo details: Celestron 114/910 telescope and Newton planetary camera
    QHY5L-II-C; UV -IR cut filter; Astrosolar filter; Sharpcap, PIPP, and
    GIMP software.

    Cabras, Sardinia, Italy Coordinates: 39.923075, 8.540492

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    Sun Links

    * NASA Solar Dynamics Observatory
    * NASA Solar Eclipse Page
    * NOAA Solar Calculator
    * The Sun-Earth Connection: Heliophysics
    * The Sunspot Cycle
    * Solar System Exploration: The Sun
    * The Sun Now
    * This Week’s Sky

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

    https://epod.usra.edu

    --- up 49 weeks, 3 days, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)