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ROSES-25: D.3D TESS GI Final Text and Phase-1 Proposals Due 10 March 2026

16 January 2026

The ROSES-25 opportunity D3.D Transiting Exoplanet Survey Satellite (TESS) General Investigator (GI) Program solicits proposals for the acquisition and analysis of new scientific data from the TESS mission taken during Cycle 9 from Sector 108 starting 7 September 2026, to Sector 121 ending 19 September 2027. Additionally, proposals that support the acquisition and/or analysis of scientific data from ground-based telescopes are also solicited if they directly support the analysis and/or interpretation of TESS scientific data, either taken during Cycle 9 or in the archive.

ROSES-2025 Amendment 33 releases final text for TESS GI and announces that the Phase-1 due date, which was previously TBD, is now 10 March 2026, via the Astrophysics Research Knowledgebase/Remote Proposal System (ARK RPS).

Please direct programmatic questions concerning TESS GI to John Wisniewski at john.p.wisniewski@nasa.gov and Joshua Pepper at joshua.a.pepper@nasa.gov. Direct technical questions concerning this program element to the TESS General Investigator Program Lead Tyler Pritchard at tyler.a.pritchard@nasa.gov.

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This cropped horizontal image has layers of semi-opaque rusty red colored gas and dust that starts at the bottom right and goes toward the top left. There are three prominent pillars rising toward the top left. The left pillar is the largest and widest. The peaks of the second and third pillars are set off in darker shades of brown and have red outlines.