Physics of the Cosmos
Exploring fundamental questions regarding the physical forces of the universe

Science Interest Groups
(SIGs)

Science Interest Groups (SIGs) are standing groups of scientists with interests in a certain area of astrophysics. SIGs provide quantitative metrics and assessments to NASA in regard to current and future needs of the community in that area, and act as a focal point and forum for the community.

Most SIGs operate within one of the three themes of NASA Astrophysics — Physics of the Cosmos, Cosmic Origins, and Exoplanet Exploration — but some encompass all astrophysics themes.

All PhysCOS SIGs are chaired by one or more members of the PhysPAG Executive Committee. Anyone subscribed to a SIG’s mailing list is considered a member of the SIG.

Current SIGs

News
10 July 2025
Release of Research Opportunities in Space and Earth Science (ROSES)-2025
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7 July 2025
TESS Users Committee Seeks Self-Nominations for New Members
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IXPE Cycle 3 Pre-Proposal Workshop – First Announcement
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HWO Community Science & Instrument Team (CSIT) Established
»  Details