TESS mission

The Transiting Exoplanet Survey Satellite (TESS) is a two-year survey that will discover exoplanets in orbit around bright stars.

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Proposing science

The TESS Guest Investigator Program is an annual call where scientists can propose new observations and receive funding and support.

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Data access

Access data, documentation, data analysis software, and find information on the follow-up observing program.

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News for scientists


Guest Investigator Program Cycle 2 deadline now March 14

Due to the partial government shutdown, the TESS Guest Investigator (GI) Program Cycle 2 deadline has been changed. The new Phase-1 due date (via ARK RPS) is 4:30 pm March 14, 2019. At this time we will be soliciting programs that target Northern Ecliptic Hemisphere fields.

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TESS Sessions at the AAS Meeting January 2019

The TESS team is looking forward to sharing our excitement about the first science results, our high expectations for the two-year science survey, and our plans for the extended mission, at the upcoming winter AAS meeting in Seattle next month.

Stop by our booth in the exhibit hall to find ...

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Sector 1 and 2 data now available at MAST

The first batch of TESS mission data is now available through MAST. This release includes all data from Sectors 1 and 2, observed between July 25 and September 20, 2018. This includes both FFI and 2-min cadence data.

The first release of the TESS instrument handbook is also available, as ...

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