Amendment No. 6 to the NASA Research Announcement (NRA) entitled "Research
Opportunities in Space and Earth Sciences (ROSES) 2005," NNH05ZDA001N,
Released January 28, 2005

On or about April 11, 2005, Amendment No. 6 to NASA Research Announcement
"Research Opportunities in Space and Earth Sciences" (NNH05ZDA001N) will be
posted on its homepage Web site at http://nspires.nasaprs.com/ (select
"Solicitations" then "Open Solicitations" then "NNH05ZDA001N").

This amendment postpones the due dates for the Planetary Atmospheres
program described in Appendix B.10. The due date for proposals is changed
from April 29, 2005, to July 11, 2005. Further information about this
Program Element is available from Dr. Denis Bogan, Solar System Division,
Science Mission Directorate, NASA Headquarters, Washington, DC 20546-0001;
Telephone: (202) 358-0359; E-mail: dbogan@....