Amendment 43: A.54 Earth Venture Suborbital-4 Draft Text Released for Community Comment

When it is solicited, A.54 Earth Venture Suborbital (EVS-4) will invite suborbital science investigations that propose integrated approaches to pressing Earth system science issues. To be eligible, investigations must be science-focused, concentrating on detailed descriptions of the science to be achieved, including goals and objectives. Proposals shall include observation strategies and a prioritized list of geophysical observables and required modeling capabilities. For this opportunity, a suborbital investigation is defined as one that relies primarily – although not necessarily exclusively – on acquisition of new measurements from airborne, shipborne, and/or balloon-borne platforms.

There are two significant changes planned for the EVS-4 solicitation process compared to the prior three rounds:

  • First, and most significantly, the process for investigation and science team selection will occur separately, in two stages. This is a draft for Stage 1, science investigation(s), with only a single named PI, will be selected from proposals submitted to this program element. In Stage 2, the next stage that will be separately solicited after investigation selection, science team membership will be competed, and the science investigation will be scoped and costed.
  • Second, the peer review process will be via Dual Anonymous Peer Review

ROSES-2022 Amendment 43 releases for community comment, draft text for A.54 Earth Venture Suborbital-4 to be solicited as part of ROSES-2022 at a future date. Comments and questions are due to and by September 29, 2022. Although individual responses may not be provided, upon release of the final text, NASA will enumerate significant changes made between the draft and final text, either through a FAQ or changes document.

On or about August 12, 2022, this Amendment to the NASA Research Announcement "Research Opportunities in Space and Earth Sciences (ROSES) 2022" (NNH22ZDA001N) will be posted on the NASA research opportunity homepage at and will appear on SARA's ROSES blog at:

Questions concerning the draft of EVS-4 should be directed to and

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