Editing Great Observatories program (section)

== Later programs ==
* The [[Beyond Einstein program]] will seek to develop new areas of science. [[Constellation-X]] and the [[Laser Interferometer Space Antenna]] (LISA) have been referred to by NASA as the [[Einstein Great Observatories]], to differentiate them from the current generation. However, they are not a part of the Great Observatories program.<ref>{{cite web|title=Great Observatories|work=Beyond Einstein|publisher=NASA
|url=http://universe.nasa.gov/program/observatories.html|access-date=2007-11-28|url-status=dead|archive-url=https://web.archive.org/web/20071103084630/http://universe.nasa.gov/program/observatories.html|archive-date=2007-11-03}} {{PD-notice}}</ref>

* The [[International Solar-Terrestrial Physics Science Initiative]] (ISTP), in the spirit of the Great Observatories program, is a group of instruments to study the Sun and related electromagnetic phenomena near Earth.<ref>{{cite web|url=http://pwg.gsfc.nasa.gov/istp/admin/proposal/1-1.html|title=The GGS Program|access-date=2007-12-03|last=Acuña|first=Mario H.|author2=Keith W. Ogilvie|author3=Robert A. Hoffman |author4=Donald H. Fairfield|author5=Steven A. Curtis|author6=James L. Green|author7=William H. Mish|author8=the GGS Science Teams|date=1997-05-01|work=ISTP-GGS/SOLARMAX Proposal|publisher=Goddard Space Flight Center}} {{PD-notice}}</ref>