Mega RhexasPublic NASA TESS data

Invite-only beta

Help look for planets in public starlight.

Volunteers’ computers search public NASA TESS star data for planets passing in front of their stars. Yours can help. It downloads a few hundred stars, looks for a repeating dip, sends back a tiny result, and deletes the big files.

Join the search Download

The beta is invite-only for now. You need an invite code to create an account. Download opens the latest GitHub Release.

Illustration of a planet crossing a star A glowing star with a small planet in front of it, and a brightness graph that dips and recovers. This is a drawing, not a real observation.
Illustration, not a real star. A planet crosses, and the star’s brightness dips a tiny bit.

The search right now

Connecting…

Agreed stars

Share of stars with two agreeing checks – agreed

Waiting for the public feed.

At a glance

Stars agreed–Two checks match
Awaiting a second check–One check so far
Unverified candidates–Not confirmed planets
Searching now–Computers online

Sectors

TESS splits the sky into sectors. Each bar is that sector’s stars. A full bar is not a discovery. It means those stars have been checked.

Sector progress loads from the public stats feed.

  • Agreed
  • Awaiting a second check
  • In progress

What this is

A tiny dip

When a planet passes in front of its star, the star dims a tiny bit. That is a transit.

How a transit works

Two checks

Two different people search each batch. It counts when they see the same dip.

Why two people

Unverified

A candidate stays unverified until astronomers confirm it. This site does not announce a discovery.

What happens next

Join the search

Create an account with your invite code, download the program, and link your computer.

Join the search Download