The NASA History Program Office is pleased to announce the availability of
When Biospheres Collide: A History of NASA’s Planetary Protection Programs (NASA SP-2011-4234) by Michael Meltzer. Attached is a double-sided flyer
with information about this book, including ordering information. It is also available at
http://history.nasa.gov/SP-4234.pdf online and soon will be available in e-book
formats.
Stephen Garber
NASA History Program Office
Mail Suite CO72, Room 5N11
NASA Headquarters
Washington, DC 20546
202-358-0385
202-358-2866 fax
http://history.nasa.gov