Brian Geoffrey Marsden is born August 5, 1937, he died November 18, 2010. He was an American-British astronomer; he was since 1978 the director of the Minor Planet Center of the SAO situated in Cambridge in Massachusetts. The Minor Planet Center, under auspices of the union Astronomical Internationale, it's the official organism charged of the collection of the observation data for the small planets (asteroids) and the comets, the calculation of their orbit and the publication of this information via the Minor Planet Circulars...
Allan Rex Sandage is born June 18, 1926 in Iowa city, Iowa (United States), and died to San Gabriel (California) November 13, 2010; he counted among the biggest contemporary American astronomers. Born in a Jewish family, he converts toward the end of his life to Christianity. Sandage worked in the observatory of the Mount Palomar. This observatory belongs and is controlled by the California Institue of technology (Caltech). One of the important programs assigned to the Palomar mount is the program of research of the comets and asteroids near-Earth objects named Near Earth Asteroid Tracking (NEAT). the asteroids near-Earth objects are the asteroids evolving close by or earth-bound. To name them one uses the ECA abbreviation, of the English Earth-Crossing Asteroids, asteroids whose orbit crosses the one of the Earth, often. Some of these objects being susceptible to knock the Earth, they are the subject of a research and a particular follow-up...
[...]
The two astronomers died to 5 days of interval of the same illness (Acute disseminated encephalomyelitis), what is more of an extremely rare illness. They were specialized in the observation and the research of the comets. Threatened with death by the American government not to reveal anything on their discoveries concerning the trajectory and the real size of the Elenin comet, they persisted to want to reveal the facts to the general public but in vain. Some weeks later, the trajectory that is given to the general public officially by the NASA will be evidently false. The works of Marsden and Sandages demonstrated a proximity many too important. The consequences would be a bursting of the terrestrial crust of it on the totality of the globe. A real cataclysm. The half of the humanity will be decimated.
