Amazing photos of huge plasma filament erupting from the Sun

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NASA spacecraft have captured pictures of a huge filament of super-hot plasma being ejected from the Sun on August 31, 2012. The Sun is approaching a period of peak activity (in 2013) and coronal mass ejections (CME’s) such as this may become more common. NASA estimates the size of the eruption as 186,000 miles long…

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How to use the Sun and shadows for navigation.

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The earth’s relationship to the sun can help you to determine direction (celestial navigation). Shadows will move in the opposite direction of the sun (shadows move from west to east). There are various methods you can use to determine the time or direction using the sun and shadows.

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