Gravitation The mutual attraction of all masses in the universe. Newton's Law of Universal Gravitation holds that every two bodies attract each other with a force that is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them. This relation is given by the formula at right, where F is the force of attraction between the two objects, given G the Universal Constant of Gravitation, masses m1 and m2, and d distance. Also stated as Fg = GMm/r2 where Fg is the force of gravitational attraction, M the larger of the two masses, m the smaller mass, and r the radius of separation of the centers of the masses.

Aero Linx: The American Astronomical Society (AAS) The American Astronomical Society (AAS), established 1899, is the major organization of professional astronomers in North America. The membership (~7,000) also includes physicists, mathematicians, geologists, engineers and others whose research interests lie within the broad spectrum of subjects now comprising contemporary astronomy. The mission of the American Astronomical Society is to enhance and share humanity's scientific understanding of the Universe.

"This team has a tremendously high probability of achieving one of the greatest space challenges of our time, the landing of a private, non-governmental lander on the Moon. This will probably be one of the largest media events of 2015." Source: Odyssey Moon advisor Michael Potter, in comments made as two teams that had been competitors for the $30 million Google Lunar X Prize have joined forces in their pursuit of the big payday. Odyssey Moon, the first team entrant in the Google Lunar X PRIZE, is joining SpaceIL, the most significant international teaming deal in the private $30 million race to the Moon.