AMENDMENT No. 18 TO THE NASA RESEARCH ANNOUNCEMENT (NRA) ENTITLED "RESEARCH
OPPORTUNITIES IN SPACE SCIENCE (ROSS) 2004," NNH04ZSS001N, RELEASED JANUARY
30, 2004

Due to an error in the initial web-posting of the Solar and Heliospheric
Physics Program Element (Appendix C.2) of ROSS 2004, there is confusion
about the due date for proposal submission. Two different dates were being
shown on the web posting at http://research.hq.nasa.gov/: February 11,
2005, and February 22, 2005. Because there is a possibility that many
people have been working towards that later due date, we formally extend
the proposal due date for this program element to February 22, 2005. Any
proposer who has already submitted a proposal and would like to take
advantage of this extra time and submit a revised proposal is asked to send
an e-mail to the SYS-EYFUS help desk (proposals@...) alerting them
to the fact that a REPLACEMENT proposal will be sent in by February 22, 2005.

Further information about this Program Element is available from Dr.
William J. Wagner, Earth-Sun System Division, Science Mission Directorate,
NASA Headquarters, Washington, DC 20546-0001; Telephone: (202) 358-0911;
FAX: (202) 358-3987; E-mail: William.J.Wagner@....