This is the development version of the TESS Science Support Center website. For the live website, visit https://heasarc.gsfc.nasa.gov/docs/tess

Cycle 4 Proposal Deadline January 22

The Cycle 4 NASA Research Announcment has been release with details of the upcoming proposal call. Proposals will be due at 4.30pm on January 22, 2021. Cycle 4 observations begin in June 2021 and end in September 2022, covering observing sectors 40-56. Observations in Cycle 4 will cover the …

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First TESS Extended Mission now available

Data from Sector 27 - the first of the TESS Extended Mission - is now available at the MAST archive. All data is in the Southern Ecliptic Hemisphere and covers a region that overlaps the Prime Mission Sector 1 field. This is the first time, TESS users can get their hands on …

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The TESS Extended Mission

On July 5, 2020, the two-year TESS Prime Mission came to a close, and the TESS Extended Mission began. Over the next 27 months, TESS will conduct additional observations of the celestial sphere intended to enhance the scientific output of the mission. The Extended Mission will include updates to the …

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