AMENDMENT NO. 3 TO NASA RESEARCH ANNOUNCEMENT (NRA) ENTITLED "RESEARCH
OPPORTUNITIES IN SPACE SCIENCE (ROSS) 2004," NNH04ZSS001 RELEASED JANUARY
30, 2004.

On or about April 2, 2004, Amendment No. 3 to NASA Research Announcement
"Research Opportunities in Space Science" (NNH04ZSS001N) will be posted on
its homepage Web site at
http://research.hq.nasa.gov/code_s/nra/current/NNH04Zss001N/index.html for
two changes.

* The due date for proposals to the Astronomy and Physics Research and
Analysis program described in Appendix A.5 is changed from Friday, April
16, 2004, to Friday, June 18, 2004. Any questions about this change may be
directed to Dr. Philippe Crane, Program Scientist, Code SZ, Office of Space
Science, NASA Headquarters, Washington, DC 20546-0001; Telephone: (202)
358-0377; FAX: (202) 358-3096; E-mail: Philippe.Crane@....

* The only experimental proposals that will be considered in the Beyond
Einstein Foundation Science program described in Appendix A.6 are those
that involve gravitational astrophysics or fundamental physics. All other
proposals for experimental work, even if strongly related to NASA's Beyond
Einstein science goals, should be directed to the relevant subelements of
the Astronomy and Physics Research and Analysis program described in
Appendix A.5. The delay of proposal due date for the Astronomy and Physics
Research and Analysis program has been made to accommodate those who were
intending to apply for experimental support under the Beyond Einstein
Foundation Science program. Any questions about this change may be
directed to Dr. Michael Salamon, Program Scientist, Code SZ, Office of
Space Science, NASA Headquarters, Washington, DC 20546-0001; Telephone:
(202) 358-0441; FAX: (202) 358-3096; E-mail: Michael.H.Salamon@....