Malachite with Chrysocolla Stalactite Crystal . A vivid turquoise blue Chrysocolla exterior has been partially polished to reveal an amazing interior of velvety concentric bands of darker and lighter green chatoyant Malachite.
Rosette Nebula (NASA, Spitzer, This infrared image shows the Rosette nebula, a star-forming region more than 5000 ly away in the constellation Monoceros. Lurking inside this nebula are so-called 'danger zones'. These zones surround super hot stat