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Every moment your body is undergoing an active process of regeneration, based as it is on the ceaseless flux of cell life and death — not unlike the dissipative structure of a flame. Consider the fact that every two days the enterocytes lining your intestines are completely replaced, and that within 100 days, almost every atom and molecule within your body has been excreted, breathed out, or sloughed off, only to be replaced by new ones from the food you ate, the water you drank and the air ...
Death Star: Eta Carinae, one of the closest stars to Earth is huge and unstable and will likely explode in a supernova in the relatively 'near future' (On an astronomical timeline this could be a million years from now), via NASA
The Bleeding Tooth fungus (Hydnellum pecki). The juice it secretes contains a pigment called atromentin which has been discovered as having anticoagulant properties similar to heparin. Scientists have also discovered the fungus contains antibiotic properties, effective against streptococcus pneumoniae. The mushroom can also be dried and transformed into a plant based dye for cloth, producing an earthy beige color.