Usually, when a star goes supernova, the core collapses in less than a second, the shockwave hits several hours later, and peak brightness is reached in a few months.

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Everyone is familiar with the well-known mirage of an oasis in the desert. It has even become a common trope in media for the main character to be stranded and see a lake of water in the distance. However, when they arrive, they find nothing but more sand.

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The green flash is an optical event that can only occur at the moment of sunset or sunrise. As if that wasn’t specific enough, the phenomenon rarely takes place, as very precise conditions must be present.

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Made of 70% water and 30% very fine sand and/or silt, quicksand is a naturally occurring phenomenon found near rivers, beaches, and marshes.

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