National Aeronautics and Space Administration (NASA)
Don Yeomans, NASA senior research scientist debunks 2012 doomsday predictions.
http://www.nasa.gov/topics/earth/features/yoemans20091110.html
David Morrison, NAI Senior Scientist, June 1, 2009 - Sheds light on some of the current predictions, using scientific explanations to discredit and deflate 2012 predictions. Includes frequently asked questions and answers about Nibiru and doomsday 2012 predictions.
http://astrobiology.nasa.gov/ask-an-astrobiologist/intro/nibiru-and-doomsday-2012-questions-and-answers
2012 - An In Depth Topical Discussion and Q&A Session with NASA Officials
http://www.nasa.gov/topics/earth/features/2012.html
