It's hard to believe something this pretty is actually rotting vegetable sticks. Check out One Third, a photographic commentary on food waste, by Klaus Pichler. Some of the photos are deceptively lovely.
Archaea were only shown to be a separate domain—through analysis of their RNA—in 1977. Many archaea thrive under the extreme conditions of hot sulfur pools or in minerals and rock deep inside the Earth. On the floor of the ocean at thermal vents, lacking both sunlight and oxygen, they obtain energy and nutrients from chemical reactions with energetic molecules emerging from the vents and molecules on the mineral surfaces of rocks. (from the Tree of Life interactive)