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Astrophsyics

PCOS Science Goals

Expand our knowledge of dark energy

The discovery that the expansion of space is accelerating presents one of the most important scientific problems of our time. The implication that the universe is dominated by an unknown entity, now called "dark energy," that counters the attractive force of gravity, may revolutionize our understanding of cosmology and fundamental physics. Although observations with ground-based and orbital assets—including HST, Chandra, and WMAP—have confirmed the acceleration, we know very little about the most basic properties of dark energy. There is currently no theory based on known physics that can quantitatively explain dark energy. Quantum physics over-predicts the amount of observed dark energy by a factor of 10120. Empirical observations are critical to distinguishing whether dark energy is consistent with Einstein's Cosmological Constant, whether it is due to a dynamic quintessence field that changes over space and time, or whether it is simply a failure of Einstein's General theory of Relativity at cosmic scales. Because it seems to control the expansion of the Universe, we cannot predict the fate of the Universe—Will the Universe last forever?—without understanding the physical nature of dark energy.



PCOS News

Program News and Announcements

7 November 2019
NASA HQ has announced that all GO & GI programs will be converting to dual-anonymous peer review over the next year. »  Details
30 October 2019
The deadline to submit abstracts to give a lightning talk at the Jan AAS PCOS & PhysPAG session on a revolutionary multimessenger / multimission astrophysics discovery that involves at least one NASA mission is extended to Wed 27 Nov 2019.
7 October 2019
The deadline for Call for Nominations to Augment the NASA LISA Study Team has been extended to 11 Oct 2019. »  Details
30 September 2019
The application deadline for "The PI Launchpad: From Science Idea to NASA Mission" is extended to 15 Oct 2019. NASA Headquarters Science Mission Directorate (the level up from NASA Astrophysics Division) is co-organizing the Nov 18–20 workshop in Tuscon, AZ, in the interests of broadening the pool of potential NASA PIs. »  Details
19 September 2019
The PhysPAG EC nomination deadline, including self-nominations, is extended to Monday 30 Sept 2019. We welcome self nominations and particularly encourage people of diverse backgrounds and viewpoints. Useful skills include good communication, a desire and ability to facilitate community organization and collaborative conclusions, and a broad perspective. See the announcement letter with instructions for nominating
13 September 2019
Submit your abstract today to give a 5min lightning talk on a revolutionary multimessenger / multimission astrophysics discovery that involves at least one NASA mission at the Jan AAS PCOS & PhysPAG session! Abstracts due by 31 Oct 2019.

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Links

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  • NASA Official: Phil Newman
  • Web Curator: Pat Tyler
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