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Astrophsyics

Completed Mission Studies

2012 Architecting Studies

NASA's Physics of the Cosmos (PCOS) Program initiated two studies to develop mission concepts that could meet some or all of the objectives outlined in the New Worlds, New Horizons decadal report for the areas of X-ray astronomy and gravitational-wave science. The PCOS Program worked with these communities to define mission concepts that achieve these science objectives at multiple price points.

This began with the release of a formal Request for Information (RFI) on each topic. In parallel, NASA released an open solicitation inviting members of the science community to participate in a Community Science Team (CST) for the X-ray mission or the gravitational-wave mission. The Program Office worked with each CST to review the RFI responses. In December 2012, workshops, which will be open to the community, were held to discuss the RFI responses and define the mission concepts to be studied.

A PCOS Program study team, working with each CST, identified the requirements relevant to each concept, defined the mission configuration options, executed mission design runs at mission design laboratories, refined the mission concepts and drafted a mission concept study reports.

Details relevant to each of these architecting studies can be found by following the links below:


JAXA, NASA XRISM Mission Ready for Liftoff

XRISM launched successfully on Wednesday, Sept. 6, 2023, at 7:42 p.m. EDT (Thursday, Sept. 7, 8:42 a.m. in Japan). The spacecraft separated from the rocket at 7:56 p.m. EDT.Read more.


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  • 21 September 2023
    AWESOM SAG Meeting 22 September 2023 »  Details.
    21 September 2023
    Open Source Science Data Repositories Workshop 27-29 September 2023 »  Details.
    21 September 2023
    Astrophysics Advisory Committee (APAC) Meeting 19-20 October 2023 »  Details.
    13 September 2023
    2023 Astrophysics Probe Explorer Announcement of Opportunity: Revisions »  Details.
    13 September 2023
    IXPE General Observer Cycle 1 Notice of Intent Due 18 September 2023 »  Details.
    13 September 2023
    INTEGRAL's Final Call for Guest Observing Time, AO-21, is Open »  Details.
    13 September 2023
    JWST Calibration Workshop: November 14 – 17, 2023 »  Details.
    6 September 2023
    Special Announcement About the Habitable Worlds Observatory START and TAG Teams »  Details.
    5 September 2023
    XRISM Launch Rescheduled for This Week »  Details.
    5 September 2023
    SMD Bridge Program Seed Funding Announcement of Opportunity Still Open »  Details.
    5 September 2023
    ROSES-23: D.13 Astrophysics Pioneers Not Solicited This Year »  Details.
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