Methanovision composite of Titan assembled from Cassini raw images taken on August 25, 2009.
White areas correspond to areas with more methane absorbtion (less haze) and red-brown area correspond to areas with more haze (north polar hood).
Image is an RGB composite from images in taken with the CB3 CL1, CL1 BL1, and inverted image of the MT3 CL2 filters respectively. Channel mixing was done as well as contrast enhancement and stretching of the original images prior to loading them into the RGB channels. The bright blue crescent is a processing artifact.
North is located toward that top. The “Playboy Peninsula” of the Senkyo-Aztlan margin is at center.
Image credits: NASA/JPL/Mike Malaska
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A tough exterior
Although what leaps to mind when we think of tree bark may be only the brittle and rough outermost layer, in fact bark can consist of complex layers of different cell types and tissues, including cork, phelloderm, cortex and phloem. Similar in many ways to the function of our skin, bark protects the tree from damage, such as from insects or dehydration, and some types of trees are even able to repair physical damage to the bark. Such wound repair is provided by callus, a mass of cells that provides regenerative potential.
Image: Confocal image of Drimys winteri bark cells. Sample fixed, cleared, and stained by Cambridge University Plant Teaching lab.
It’s sad that I remember all of this from bio 1
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