The HERO NRA, including all open appendices, is available through the NASA Research Opportunities homepage at:    https://tinyurl.com/HERO20OVERVIEW 

2020 HERO Appendix E: Human Health and Performance Topics
80JSC020N0001-HHP
https://www.grants.gov/web/grants/view-opportunity.html?oppId=332512
See the solicitation:  https://nspires.nasaprs.com/external/solicitations/summary.do?solId=%7B18B528FB-E81C-C95D-722B-9176EB26FE1C%7D&path=&method=init
deadline April 30, 2021
Proposals are solicited by NASA in the areas of:

• Manual Control Countermeasures
• Computational Brain Modeling to Characterize the Effects of Space Radiation Exposure

2020 HERO Appendix F: NASA Human Research Program Omnibus Opportunity
80JSC020N0001-OMNIBUS3
https://www.grants.gov/web/grants/view-opportunity.html?oppId=332513
See the solicitation:    https://nspires.nasaprs.com/external/solicitations/summary.do?solId=%7B1F68C7C2-D51F-1724-3B72-DA459D1A95C3%7D&path=&method=init
deadline April 30, 2021