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NASA vows to review ban on Chinese astronomers

The NASA logo on a protective box for a camera near the space shuttle Endeavour April 28, 2011 at Kennedy Space Center in Florida as preparations are under way for an April 29 launch of Endeavour, which will be its last flight.The US space agency Thursday vowed to reconsider the applications of Chinese scientists who were denied access to a NASA conference on security grounds, sparking a boycott by leading American astronomers. NASA administrator Charles Bolden said the situation was "unfortunate" and pledged to take a fresh look at the applications once the US government reopens.