Proposal Deadlines

Cycle 27 has the following deadlines:

• Phase I proposals are due April 5, 2019 at 8:00pm EDT
• Phase II proposals are due July 25, 2019
• Budget proposals are due August 8, 2019

Who May Submit 

Scientists of any nationality or affiliation may submit an HST proposal. Endorsement signatures are not required for Phase I observing proposals (unless required by the regulations of the proposing institution).

Principal Investigator and Co-Investigators

Each proposal must have a Principal Investigator (PI), who is responsible for the scientific conduct of the project. A Co-PI option is also available, allowing two or more proposers to share the scientific responsibility of the project. Any other individuals who are actively involved in the proposal should be listed as Co-Investigators (Co-Is). The proposal itself may be submitted through APT by either the PI or a Co-I.

Proposals by non-U.S. PIs that have one or more U.S. Co-Is must designate one of the U.S. Co-Is as the Administrative PI (Admin PI). This person will have overall oversight and responsibility for the budget submissions of the U.S. Co-Is in Phase II (see Grant Funding for funding eligibility requirements). All proposals have the option of designating a Contact Co-I, who will serve as the contact person for that proposal. The PI remains responsible for oversight of the proposal.

All proposals are reviewed without regard to the nationalities or affiliations of the investigators.

ESA Scientists

An agreement between NASA and ESA states that a minimum of 15% of HST observing time (on average over the lifetime of the HST project) will be allocated to scientists from ESA member states. It is anticipated that this requirement will continue to be satisfied via the normal selection process, as it has been in previous cycles. ESA scientists will be identified automatically by APT based on the institution selected; the ESA flag will only be visible in the PDF output.

Student PIs

Observing proposals from student PIs will be considered. 

Institutional Endorsement

STScI does not require the signature of an Authorizing Official (AO) on GO/AR Proposals in Phase I. However, some institutions do require AO approval of all submitted proposals. It is the responsibility of each PI to follow all applicable institutional policies concerning the submission of proposals.

Funding

Subject to availability of funds from NASA, STScI will provide financial support for U.S. PIs and Co-Is of approved Cycle 27 programs. Budgets are not due in Phase I, but are required by the budget submission deadline from successful proposers. Details of the STScI Funding Policies are outlined in HST Cycle 27 Grant Funding and Budget Submissions.

NASA’s Science Mission Directorate has restructured its education program, and as a result STScI no longer solicits Education/Public Outreach (E/PO) proposals. We will keep the HST Cycle E/PO community informed of future opportunities should they become available.

ESA does not fund HST research programs. Therefore, successful ESA member-state proposers should seek any necessary resources from their respective home institutions or national funding agencies.

Proposal Confidentiality

Proposals submitted to STScI will be kept confidential to the extent allowed by the review process described in HST Cycle 27 Proposal Selection Procedures. For accepted proposals, the scientific justification section of the proposal remains confidential, but other sections become publicly accessible, including PI and Co-I names, project titles, abstracts, description of observations, special scheduling requirements, and details of all targets and exposures. Phase II programs submitted for approved proposals become publicly accessible in their entirety.

Next: HST Cycle 27 Proposal Categories