Intermediate Word:  sedition -  (a) diligence  (b) turbidity (c) a clandestine act  (d) inciting rebellion
Difficult Word: - manque  (a) unfulfilled  (b) mana  (c) a fermented cocoanut beverage  (d) a S. E. Asian monkey

Runt of the litter? Odd Black Hole Revealed - Space.com  Black holes come in two primary flavors. The stellar variety are formed when massive stars collapse, and they are typically a few times the mass of the Sun. Supermassive black holes are colossal and may be the result of many mergers of less massive black holes. Scientists have found hints for some black holes of a middleweight class, but observations of this possible class have not proved firm.      
Priming The Human Primate - SpaceDaily  Left:  Evolutionary branches of the primate species depicted on the tree. See larger image. Credit: Mark A. Klingler, Carnegie Museum of Natural History. Researchers have learned that despite the 99 percent similarity between the DNA of humans and our closest relative, the chimpanzee, a significant difference occurs in the places along the genome where gene swapping occurs. In the Feb. 10 online issue of the journal Science, researchers from the Broad Institute of MIT and Harvard report with colleagues that the locations of DNA swapping between chromosomes, known as recombination "hotspots," are nearly entirely different.  

Mars Express, Esa

Mars pictures reveal frozen sea  - BBC  Their assessment is based on pictures of the planet's near-equatorial Elysium region that show plated and rutted features across an area 800 by 900km. The team think a catastrophic event flooded the landscape five million years ago and then froze out. They tell a forthcoming edition of Nature magazine that sediments covered the ice, locking it in place. "We know where the water came from... You can trace the valleys carved by water down to this area." The probe will soon deploy its Marsis (Mars Advance Radar for Subsurface and Ionospheric Sounding) instrument. "The fact that there have been warm and wet places beneath the surface of Mars since before life began on Earth, and that some are probably still there, means that there is a possibility that primitive micro-organisms survive on Mars today," Professor Murray said.

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