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Call for Proposals

The Call for Proposals describes the policies and procedures for submitting a Phase I proposal for HST Observing, Archival or Theoretical Research. Please read our guide to the use of electronic document formats.

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  • PDF [European A4 Size]
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Cycle 17 Call for Proposals
Multi-Cycle Treasury Programs Call for Proposals
HST Primer
Phase II Instructions
APT
COS GTO
WFC3 ERS
STScI Community Service Programs
HST Documents
Science Justification Templates

Special Opportunities

Special Opportunities


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