Intermediate Word:  landau (a) country estate  (b) right of the eldest son to the family holdings  (c) four-wheeled closed carriage  (d) rural governing council
Difficult Word:
  grith -  (a) pluck  (b) medieval tax paid at harvest time  (c) fish net in feed stock  (d) sanctuary in church or on king's highway

Rotating disk Astronomers find a mixed-up solar system - PhysicsWeb  Astronomers in the US have discovered that the inner and outer parts of a gas disk orbiting a young star in our galaxy are rotating in opposite directions. This unexpected result means that some of the planets that will form around the star will orbit in one direction, while the other planets will orbit in the opposite direction, implying that star and planet formation could be more complicated than thought..       
X PRIZE Foundation And The $2M Lunar Lander Challenge - SpaceDaily  Left:  On October 4, 2004, the Ansari X PRIZE proved that offering a prize for a radical breakthrough in research and development is an extremely effective catalyst towards accelerating technological growth. Based on that success, the X PRIZE Foundation is now widely recognized as the premiere prize institute in the world.  The X PRIZE Foundation is moving forward with plans to offer a $2 million Lunar Lander Challenge by releasing draft rules of the competition today, making them available for public comment. The LLC was originally introduced in a Letter of Intent executed between XPF and NASA's Centennial Challenges manager, Brant Sponberg, at the 2005 X PRIZE Cup.    

The Invisible Galaxies That Could Not Hide - PhysicsWeb  Astronomers, using the unique capabilities offered by the high-resolution spectrograph UVES on ESO's Very Large Telescope, have found a metal-rich hydrogen cloud in the distant universe. The result may help to solve the missing metal problem and provides insight on how galaxies form. "Our discovery shows that significant quantities of metals are to be found in very remote galaxies that are too faint to be directly seen", said Céline Péroux (ESO), lead-author of the paper presenting the results [1]. The analysis of the spectrum shows that this galaxy has four times more metals than the Sun. This is the first time one finds such a large amount of 'metals' [2] in a very distant object.    

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