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  2. Impact Field Studies Group - Wikipedia

    en.wikipedia.org/wiki/Impact_Field_Studies_Group

    The submitter should download the Impact Database or KML (Google Earth) version of it to verify that the site has not already been included, and possibly rejected. If the submitter is not familiar with the science behind recognition of impact craters, they must read Traces of Catastrophe .

  3. Google Earth - Wikipedia

    en.wikipedia.org/wiki/Google_Earth

    Google Earth is a web and computer program that renders a 3D representation of Earth based primarily on satellite imagery.The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles.

  4. Error analysis for the Global Positioning System - Wikipedia

    en.wikipedia.org/wiki/Error_analysis_for_the...

    That is the satellites' clocks are slower than Earth's clocks by 7214 nanoseconds a day due to their velocity. Note that this speed of 3874 m/s is measured relative to Earth's center rather than its surface where the GPS receivers (and users) are. This is because Earth's equipotential makes net time dilation equal across its geodesic surface. [18]

  5. Geopotential spherical harmonic model - Wikipedia

    en.wikipedia.org/wiki/Geopotential_spherical...

    As P 0 n (x) = −P 0 n (−x) non-zero coefficients J n for odd n correspond to a lack of symmetry "north–south" relative the equatorial plane for the mass distribution of Earth. Non-zero coefficients C n m, S n m correspond to a lack of rotational symmetry around the polar axis for the mass distribution of Earth, i.e. to a "tri-axiality" of ...

  6. Deniliquin multiple-ring feature - Wikipedia

    en.wikipedia.org/wiki/Deniliquin_multiple-ring...

    The Deniliquin multiple-ring feature is a distinct deeply buried structure in southeast Australia. It is named after the town of Deniliquin.Its characteristics suggest that it is associated with an asteroid impact structure of diameter 520 km (320 mi), which would make it the largest one on Earth, exceeding the largest known one, the Vredefort impact structure of about 300 km (190 mi) in diameter.

  7. File:Dynamic Earth-A New Beginning.webm - Wikipedia

    en.wikipedia.org/wiki/File:Dynamic_Earth-A_New...

    English: Follow a coronal mass ejection as is passes Venus then Earth, and explore how the sun drives Earth's winds and oceans. Other languages Čeština: Sledování výronu koronální hmoty ze sluneční koróny , který prolétá kolem Venuše a dále naší planety Země a ukazuje, jak tímto způsobem Slunce ovlivňuje pozemskou ...

  8. List of Earth flybys - Wikipedia

    en.wikipedia.org/wiki/List_of_Earth_flybys

    List of Earth flybys is a list of cases where spacecraft incidentally performed Earth flybys, typically for a gravity assist to another body. Spacecraft Organization

  9. Earth's crustal evolution - Wikipedia

    en.wikipedia.org/wiki/Earth's_crustal_evolution

    By scaling up the number and size of impact craters seen on the Moon to fit the size of Earth, it is predicted that at least 50% of the Earth's initial crust was covered in impact basins. [8] This estimate provides a lower limit of the effect impact cratering had on the Earth's surface.