Zenith, the point in the heavens that is directly above the head of the observer. The opposite point, that directly below the observer's feet, is the nadir. Zenith also applies to the highest point a heavenly body appears to reach above the horizon. The sun reaches its zenith at noon.
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Atmosphere, the mass of gases surrounding a planet or any other celestial object.
Whether you invented a revolutionary pair of skivvies or a way to turn cow manure into vanilla flavoring, we have an award for you. The Ig Nobels are proving that science isn't all seriousness and superstring theory.