Oct 1, 2021

Amendment 39: C.26 EnVision VenSAR Science Team Final text and Due Dates

Program element C.26 EnVision VenSAR Science Team (VenSAR ST) calls for proposals for team members and a team leader for the VenSAR Science Team (VeST) over the period of 2021-2026. NASA intends to select ~12 members for the VeST with a range of expertise relevant to VenSAR, Venus science, and multidisciplinary approaches that integrate VenSAR with the other instruments planned for EnVision. Of the total ~12 members, ~10 are expected to be from U.S. institutions that will be supported by NASA, and up to 2 members are expected to be from institutions located in ESA member states with support from their own national or other program.

ROSES-2021 Amendment 39 releases final text and due dates for C.26 VenSAR ST, which was previously released as draft for community comment. Notices of intent to propose are requested by November 19, 2021, and 5-page proposals are due January 20, 2022.

The major changes since the draft was published are as follows:

  • The EnVision Mission has now been selected by ESA.
  • The total amount available for awards has been reduced from $1M to $750K.
  • The total number of expected awards to U.S. PIs has been increased to 10 from 7.
  • There have been minor clarifications and changes to the Scope of Program, including expected roles of VeST team members and recognition that team member contributions may vary widely in size and scope.
  • There are new options for VenSAR team members to request consideration for roles on the EnVision Mission’s Science Study Team, including a leadership role
  • International participation has been clarified, and this ROSES element is only open to scientists based at US Institutions and ESA-member states.

On or about October 1, 2021, this Amendment to the NASA Research Announcement "Research Opportunities in Space and Earth Sciences (ROSES) 2021" (NNH21ZDA001N) was posted on the NASA research opportunity homepage at

Questions concerning C.26 VenSAR ST may be directed to Thomas Wagner at