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Astrophsyics

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.


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  • NASA Official: Phil Newman
  • Web Curator: Pat Tyler
Goddard Space Flight Center
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