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and K-12 education.
Did you know that in Norse mythology, there is a huge rainbow bridge called Bifrost that connects Midgard, the realm of humans, to Asgard, the home of the gods?
Earth and Space Science Concept of the Day
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Moho
xMoho : The boundary between the crust and the mantle in the earth. This is a depth where seismic waves change velocity and there is also a change in chemical composition. Also termed the Mohorovicic' discontinuity after the Croatian seismologist Andrija Moh
Tiny variations in the isotopic composition of silver in meteorites and Earth rocks are helping scientists put together a timetable of how our planet was assembled, beginning 4.568 billion years ago. Results...Read more