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About Physics of the Cosmos (PCOS)

The Physics of the Cosmos (PCOS) Program lies at the intersection of physics and astronomy. Its purpose is to explore some of the most fundamental questions regarding the physical forces and laws of the universe: the validity of Einstein's General Theory of Relativity and the nature of spacetime; the behavior of matter and energy in extreme environments; the cosmological parameters governing inflation and the evolution of the universe; and the nature of dark matter and dark energy.

The PCOS Program consists of a suite of operating science missions and future missions that focus on specific aspects of these topics.


Program News and Announcements

19 Mar 2018
PhysPAG EC requests your input on High Risk High Reward research! Submit your response by 2 Apr 2018 for consideration for input to APAC. »  More details
14 Mar 2018
Notice: APRA, SAT, and LISA Preparatory Science NoI due date changed to 19 March 2018 due to winter storms.
26 Feb 2018
LISA Preparatory Science is a new program element in ROSES 2018 to provide support for U.S. investigators involved in analysis and interpretation of simulated LISA data. Mandatory NOIs are due 19 Mar 2018 and full proposals are due 14 Jun 2018.
8 Feb 2018
Welcome to our new PhysPAG EC members! Many thanks to our departing members!

Project News

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