Numerous clinical trials have been done on Krill Oil and have concluded that not only is it safe, but it contains essential nutrients that your body needs. The main nutrient is called Omega-3, a fatty acid that your body can not produce on its own and must be ingested through the food we eat.
The atmosphere protects us from this space junk that would do damage to us, to our homes, and to the earth itself. It is because of the heat created by the friction of the atmosphere that the space shuttle had to be equipped with a heat shield to prevent it from burning up as it re-entered the Earth's atmosphere.
Venus is too hot, Mars is too cold. Earth is just right. Noted astronomer Carl Sagan described Earth as seen from distant space as a pale blue dot, signaling our planet as an outpost of life. It's because of the hydrosphere that life flourishes on Earth. Just as important as the existence of water is the hydrologic cycle that moves water around the globe. Driven by solar energy, surface waters evaporate into the atmosphere, condense, and fall back to the surface as precipitation, shaping continents, creating rivers, and filling lakes.